31120133252530 has 32 divisors (see below), whose sum is σ = 64353735567360. Its totient is φ = 10613897350080.

The previous prime is 31120133252501. The next prime is 31120133252531. The reversal of 31120133252530 is 3525233102113.

It is a junction number, because it is equal to n+sod(n) for n = 31120133252492 and 31120133252501.

It is not an unprimeable number, because it can be changed into a prime (31120133252531) 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, 1163791165 + ... + 1163817904.

It is an arithmetic number, because the mean of its divisors is an integer number (2011054236480).

Almost surely, 2^{31120133252530} is an apocalyptic number.

31120133252530 is an abundant number, since it is smaller than the sum of its proper divisors (33233602314830).

31120133252530 is a wasteful number, since it uses less digits than its factorization.

31120133252530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327609274.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 31120133252530 its reverse (3525233102113), we get a palindrome (34645366354643).

The spelling of 31120133252530 in words is "thirty-one trillion, one hundred twenty billion, one hundred thirty-three million, two hundred fifty-two thousand, five hundred thirty".