31200310140434 has 16 divisors (see below), whose sum is σ = 49722558115608. Its totient is φ = 14632387967232.

The previous prime is 31200310140421. The next prime is 31200310140463. The reversal of 31200310140434 is 43404101300213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31106799558409 + 93510582025 = 5577347^2 + 305795^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1565956217 + ... + 1565976140.

Almost surely, 2^{31200310140434} is an apocalyptic number.

31200310140434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31200310140434 is a deficient number, since it is larger than the sum of its proper divisors (18522247975174).

31200310140434 is a wasteful number, since it uses less digits than its factorization.

31200310140434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131932669.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31200310140434 its reverse (43404101300213), we get a palindrome (74604411440647).

The spelling of 31200310140434 in words is "thirty-one trillion, two hundred billion, three hundred ten million, one hundred forty thousand, four hundred thirty-four".