1331412431 has 16 divisors (see below), whose sum is σ = 1402057728. Its totient is φ = 1261893600.

The previous prime is 1331412427. The next prime is 1331412457. The reversal of 1331412431 is 1342141331.

It is a cyclic number.

It is not a de Polignac number, because 1331412431 - 2² = 1331412427 is a prime.

It is a super-2 number, since 2×1331412431² = 3545318122842659522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331412397 and 1331412406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331412421) 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, 1414421 + ... + 1415361.

It is an arithmetic number, because the mean of its divisors is an integer number (87628608).

Almost surely, 2^1331412431 is an apocalyptic number.

1331412431 is a deficient number, since it is larger than the sum of its proper divisors (70645297).

1331412431 is a wasteful number, since it uses less digits than its factorization.

1331412431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462.

The product of its digits is 864, while the sum is 23.

The square root of 1331412431 is about 36488.5246481685. The cubic root of 1331412431 is about 1100.1136056220.

Adding to 1331412431 its reverse (1342141331), we get a palindrome (2673553762).

The spelling of 1331412431 in words is "one billion, three hundred thirty-one million, four hundred twelve thousand, four hundred thirty-one".