31000040734 has 32 divisors (see below), whose sum is σ = 53939902464. Its totient is φ = 13244156640.

The previous prime is 31000040713. The next prime is 31000040801. The reversal of 31000040734 is 43704000013.

It is a happy number.

It is a super-3 number, since 3×31000040734³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

31000040734 is a modest number, since divided by 40734 gives 310 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817584 + ... + 854659.

It is an arithmetic number, because the mean of its divisors is an integer number (1685621952).

Almost surely, 2^31000040734 is an apocalyptic number.

31000040734 is a deficient number, since it is larger than the sum of its proper divisors (22939861730).

31000040734 is a wasteful number, since it uses less digits than its factorization.

31000040734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672312.

The product of its (nonzero) digits is 1008, while the sum is 22.

Adding to 31000040734 its reverse (43704000013), we get a palindrome (74704040747).

The spelling of 31000040734 in words is "thirty-one billion, forty thousand, seven hundred thirty-four".