31204452525401 has 4 divisors (see below), whose sum is σ = 31205582453172. Its totient is φ = 31203322597632.

The previous prime is 31204452525391. The next prime is 31204452525451. The reversal of 31204452525401 is 10452525440213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9514232785225 + 21690219740176 = 3084515^2 + 4657276^2 .

It is a cyclic number.

It is not a de Polignac number, because 31204452525401 - 2²⁶ = 31204385416537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31204452525451) 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 3 ways as a sum of consecutive naturals, for example, 564922460 + ... + 564977693.

It is an arithmetic number, because the mean of its divisors is an integer number (7801395613293).

Almost surely, 2^{31204452525401} is an apocalyptic number.

It is an amenable number.

31204452525401 is a deficient number, since it is larger than the sum of its proper divisors (1129927771).

31204452525401 is a wasteful number, since it uses less digits than its factorization.

31204452525401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129927770.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 31204452525401 its reverse (10452525440213), we get a palindrome (41656977965614).

The spelling of 31204452525401 in words is "thirty-one trillion, two hundred four billion, four hundred fifty-two million, five hundred twenty-five thousand, four hundred one".