1306996031 has 8 divisors (see below), whose sum is σ = 1426944000. Its totient is φ = 1187236440.

The previous prime is 1306996013. The next prime is 1306996049.

1306996031 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (1306996013) and next prime (1306996049).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1306996031 - 2⁶ = 1306995967 is a prime.

It is a super-2 number, since 2×1306996031² = 3416477250099505922, 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 (1306996531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32381 + ... + 60518.

It is an arithmetic number, because the mean of its divisors is an integer number (178368000).

Almost surely, 2^1306996031 is an apocalyptic number.

1306996031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1306996031 is a deficient number, since it is larger than the sum of its proper divisors (119947969).

1306996031 is a wasteful number, since it uses less digits than its factorization.

1306996031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94189.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 1306996031 is about 36152.4000724710. The cubic root of 1306996031 is about 1093.3471811176.

The spelling of 1306996031 in words is "one billion, three hundred six million, nine hundred ninety-six thousand, thirty-one".