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1020302412031 = 717192106322343
BaseRepresentation
bin11101101100011101100…
…00110100100011111111
310121112120121222211001101
432312032300310203333
5113204034404141111
62100415341353531
7133500021256450
oct16661660644377
93545517884041
101020302412031
11363787126611
121458a92688a7
13752a25070b6
143755096d127
151b818d1abc1
hexed8ec348ff

1020302412031 has 48 divisors (see below), whose sum is σ = 1304337613824. Its totient is φ = 779011561728.

The previous prime is 1020302412029. The next prime is 1020302412049. The reversal of 1020302412031 is 1302142030201.

It is a happy number.

It is not a de Polignac number, because 1020302412031 - 21 = 1020302412029 is a prime.

It is a super-2 number, since 2×10203024120312 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020302412131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45654246 + ... + 45676588.

It is an arithmetic number, because the mean of its divisors is an integer number (27173700288).

Almost surely, 21020302412031 is an apocalyptic number.

1020302412031 is a deficient number, since it is larger than the sum of its proper divisors (284035201793).

1020302412031 is a wasteful number, since it uses less digits than its factorization.

1020302412031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23468 (or 23449 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1020302412031 its reverse (1302142030201), we get a palindrome (2322444442232).

The spelling of 1020302412031 in words is "one trillion, twenty billion, three hundred two million, four hundred twelve thousand, thirty-one".

Divisors: 1 7 17 19 119 133 323 361 1063 2261 2527 6137 7441 18071 20197 22343 42959 126497 141379 156401 343349 379831 383743 424517 2403443 2658817 2686201 2971619 6523631 7216789 8065823 23750609 45665417 50517523 56460761 137118991 166254263 403760353 451261571 959832937 2826322471 3158830997 7671446707 8573969849 53700126949 60017788943 145757487433 1020302412031