1012103431 has 12 divisors (see below), whose sum is σ = 1061994472. Its totient is φ = 964464336.

The previous prime is 1012103413. The next prime is 1012103447. The reversal of 1012103431 is 1343012101.

It is not a de Polignac number, because 1012103431 - 2¹¹ = 1012101383 is a prime.

It is a super-2 number, since 2×1012103431² = 2048706710083943522, which 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 (1012103471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143080 + ... + 149986.

Almost surely, 2^1012103431 is an apocalyptic number.

1012103431 is a deficient number, since it is larger than the sum of its proper divisors (49891041).

1012103431 is an equidigital number, since it uses as much as digits as its factorization.

1012103431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7230 (or 7207 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1012103431 is about 31813.5730624524. The cubic root of 1012103431 is about 1004.0183085686.

Adding to 1012103431 its reverse (1343012101), we get a palindrome (2355115532).

It can be divided in two parts, 10 and 12103431, that added together give a square (12103441 = 3479²).

The spelling of 1012103431 in words is "one billion, twelve million, one hundred three thousand, four hundred thirty-one".