1023112235431 has 16 divisors (see below), whose sum is σ = 1202020541568. Its totient is φ = 858525343200.

The previous prime is 1023112235419. The next prime is 1023112235459. The reversal of 1023112235431 is 1345322113201.

It is a cyclic number.

It is not a de Polignac number, because 1023112235431 - 2⁹ = 1023112234919 is a prime.

It is a super-2 number, since 2×1023112235431² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1023112235431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023112235471) 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, 4524400 + ... + 4745146.

It is an arithmetic number, because the mean of its divisors is an integer number (75126283848).

Almost surely, 2^{1023112235431} is an apocalyptic number.

1023112235431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1023112235431 is a deficient number, since it is larger than the sum of its proper divisors (178908306137).

1023112235431 is a wasteful number, since it uses less digits than its factorization.

1023112235431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253182.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 1023112235431 its reverse (1345322113201), we get a palindrome (2368434348632).

The spelling of 1023112235431 in words is "one trillion, twenty-three billion, one hundred twelve million, two hundred thirty-five thousand, four hundred thirty-one".