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1010023043431 = 19701291725997
BaseRepresentation
bin11101011001010100001…
…00001001000101100111
310120120001020112210020211
432230222010021011213
5113022011344342211
62051555335040251
7132654212134003
oct16545204110547
93516036483224
101010023043431
1135a391749866
121438ba810087
137432499377c
1436c57687703
151b416676e21
hexeb2a109167

1010023043431 has 16 divisors (see below), whose sum is σ = 1065104782560. Its totient is φ = 955134633600.

The previous prime is 1010023043423. The next prime is 1010023043443. The reversal of 1010023043431 is 1343403200101.

It is a cyclic number.

It is not a de Polignac number, because 1010023043431 - 23 = 1010023043423 is a prime.

It is a super-2 number, since 2×10100230434312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010023043401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38838525 + ... + 38864521.

It is an arithmetic number, because the mean of its divisors is an integer number (66569048910).

Almost surely, 21010023043431 is an apocalyptic number.

1010023043431 is a deficient number, since it is larger than the sum of its proper divisors (55081739129).

1010023043431 is a wasteful number, since it uses less digits than its factorization.

1010023043431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29634.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1010023043431 its reverse (1343403200101), we get a palindrome (2353426243532).

The spelling of 1010023043431 in words is "one trillion, ten billion, twenty-three million, forty-three thousand, four hundred thirty-one".

Divisors: 1 19 701 2917 13319 25997 55423 493943 2044817 18223897 38851523 75833249 346254043 1440831731 53159107549 1010023043431