31201023313130 has 32 divisors (see below), whose sum is σ = 61417262249280. Its totient is φ = 11318086235520.

The previous prime is 31201023313123. The next prime is 31201023313139. The reversal of 31201023313130 is 3131332010213.

It is a junction number, because it is equal to n+sod(n) for n = 31201023313096 and 31201023313105.

It is not an unprimeable number, because it can be changed into a prime (31201023313139) 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, 346710104 + ... + 346800083.

It is an arithmetic number, because the mean of its divisors is an integer number (1919289445290).

Almost surely, 2^{31201023313130} is an apocalyptic number.

31201023313130 is a deficient number, since it is larger than the sum of its proper divisors (30216238936150).

31201023313130 is a wasteful number, since it uses less digits than its factorization.

31201023313130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693510614.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31201023313130 its reverse (3131332010213), we get a palindrome (34332355323343).

The spelling of 31201023313130 in words is "thirty-one trillion, two hundred one billion, twenty-three million, three hundred thirteen thousand, one hundred thirty".