31443126313 has 8 divisors (see below), whose sum is σ = 31755679488. Its totient is φ = 31130713344.

The previous prime is 31443126311. The next prime is 31443126317. The reversal of 31443126313 is 31362134413.

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 31443126313 - 2¹ = 31443126311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31443126311) 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, 448656 + ... + 513982.

It is an arithmetic number, because the mean of its divisors is an integer number (3969459936).

Almost surely, 2^31443126313 is an apocalyptic number.

It is an amenable number.

31443126313 is a deficient number, since it is larger than the sum of its proper divisors (312553175).

31443126313 is a wasteful number, since it uses less digits than its factorization.

31443126313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70103.

The product of its digits is 15552, while the sum is 31.

It can be divided in two parts, 3144312 and 6313, that added together give a square (3150625 = 1775²).

The spelling of 31443126313 in words is "thirty-one billion, four hundred forty-three million, one hundred twenty-six thousand, three hundred thirteen".