31040035234 has 16 divisors (see below), whose sum is σ = 50502332160. Its totient is φ = 14223102480.

The previous prime is 31040035231. The next prime is 31040035241. The reversal of 31040035234 is 43253004013.

It is a super-2 number, since 2×31040035234² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31040035199 and 31040035208.

It is not an unprimeable number, because it can be changed into a prime (31040035231) 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, 4290802 + ... + 4298029.

It is an arithmetic number, because the mean of its divisors is an integer number (3156395760).

Almost surely, 2^31040035234 is an apocalyptic number.

31040035234 is a deficient number, since it is larger than the sum of its proper divisors (19462296926).

31040035234 is a wasteful number, since it uses less digits than its factorization.

31040035234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8588985.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 31040035234 its reverse (43253004013), we get a palindrome (74293039247).

The spelling of 31040035234 in words is "thirty-one billion, forty million, thirty-five thousand, two hundred thirty-four".