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10212021312031 = 7111451327127943
BaseRepresentation
bin1001010010011010101111…
…1001110001101000011111
31100011021000022201212021201
42110212223321301220133
52314303204423441111
633415200545340331
72102536256640250
oct224465371615037
940137008655251
1010212021312031
113287991892940
12118b1a93376a7
13590cb2b61886
1427439b9b8b27
1512a9889476c1
hex949abe71a1f

10212021312031 has 32 divisors (see below), whose sum is σ = 12744996397056. Its totient is φ = 7949219580000.

The previous prime is 10212021311957. The next prime is 10212021312047. The reversal of 10212021312031 is 13021312021201.

It is a cyclic number.

It is not a de Polignac number, because 10212021312031 - 213 = 10212021303839 is a prime.

It is a super-2 number, since 2×102120213120312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212021312061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365445046 + ... + 365472988.

It is an arithmetic number, because the mean of its divisors is an integer number (398281137408).

Almost surely, 210212021312031 is an apocalyptic number.

10212021312031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10212021312031 is a deficient number, since it is larger than the sum of its proper divisors (2532975085025).

10212021312031 is a wasteful number, since it uses less digits than its factorization.

10212021312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32683.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 10212021312031 its reverse (13021312021201), we get a palindrome (23233333333232).

The spelling of 10212021312031 in words is "ten trillion, two hundred twelve billion, twenty-one million, three hundred twelve thousand, thirty-one".

Divisors: 1 7 11 77 1451 3271 10157 15961 22897 27943 35981 111727 195601 251867 307373 2151611 4746221 33223547 40545293 52208431 91401553 283817051 365459017 445998223 639810871 1005417083 3121987561 7037919581 132623653403 928365573821 1458860187433 10212021312031