1012403211431 has 32 divisors (see below), whose sum is σ = 1104846635520. Its totient is φ = 924685977600.

The previous prime is 1012403211427. The next prime is 1012403211451. The reversal of 1012403211431 is 1341123042101.

It is a cyclic number.

It is not a de Polignac number, because 1012403211431 - 2² = 1012403211427 is a prime.

It is a super-2 number, since 2×1012403211431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012403211397 and 1012403211406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012403211401) 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, 12341591 + ... + 12423351.

It is an arithmetic number, because the mean of its divisors is an integer number (34526457360).

Almost surely, 2^{1012403211431} is an apocalyptic number.

1012403211431 is a deficient number, since it is larger than the sum of its proper divisors (92443424089).

1012403211431 is a wasteful number, since it uses less digits than its factorization.

1012403211431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82055.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1012403211431 its reverse (1341123042101), we get a palindrome (2353526253532).

The spelling of 1012403211431 in words is "one trillion, twelve billion, four hundred three million, two hundred eleven thousand, four hundred thirty-one".