31000134441 has 16 divisors (see below), whose sum is σ = 42346100160. Its totient is φ = 20164772160.

The previous prime is 31000134421. The next prime is 31000134461. The reversal of 31000134441 is 14443100013.

It is an interprime number because it is at equal distance from previous prime (31000134421) and next prime (31000134461).

It is not a de Polignac number, because 31000134441 - 2⁵ = 31000134409 is a prime.

It is a super-2 number, since 2×31000134441² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31000134401) 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, 509811 + ... + 567368.

It is an arithmetic number, because the mean of its divisors is an integer number (2646631260).

Almost surely, 2^31000134441 is an apocalyptic number.

It is an amenable number.

31000134441 is a deficient number, since it is larger than the sum of its proper divisors (11345965719).

31000134441 is a wasteful number, since it uses less digits than its factorization.

31000134441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077416.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31000134441 its reverse (14443100013), we get a palindrome (45443234454).

The spelling of 31000134441 in words is "thirty-one billion, one hundred thirty-four thousand, four hundred forty-one".