31120203230001 has 24 divisors (see below), whose sum is σ = 45033979274856. Its totient is φ = 20708701324800.

The previous prime is 31120203229943. The next prime is 31120203230033. The reversal of 31120203230001 is 10003230202113.

31120203230001 is a `hidden beast` number, since 311 + 2 + 0 + 20 + 32 + 300 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8735713229376 + 22384490000625 = 2955624^2 + 4731225^2 .

It is not a de Polignac number, because 31120203230001 - 2¹⁸ = 31120202967857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31120203230071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35328151 + ... + 36198323.

It is an arithmetic number, because the mean of its divisors is an integer number (1876415803119).

Almost surely, 2^{31120203230001} is an apocalyptic number.

It is an amenable number.

31120203230001 is a deficient number, since it is larger than the sum of its proper divisors (13913776044855).

31120203230001 is a wasteful number, since it uses less digits than its factorization.

31120203230001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877473 (or 877470 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31120203230001 its reverse (10003230202113), we get a palindrome (41123433432114).

The spelling of 31120203230001 in words is "thirty-one trillion, one hundred twenty billion, two hundred three million, two hundred thirty thousand, one".