3031251620401 has 3 divisors (see below), whose sum is σ = 3031253361451. Its totient is φ = 3031249879352.

The previous prime is 3031251620389. The next prime is 3031251620407. The reversal of 3031251620401 is 1040261521303.

The square root of 3031251620401 is 1741049.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2174442210801 + 856809409600 = 1474599^2 + 925640^2 .

It is not a de Polignac number, because 3031251620401 - 2¹⁵ = 3031251587633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3031251620401.

It is not an unprimeable number, because it can be changed into a prime (3031251620407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 870525 + ... + 2611573.

Almost surely, 2^{3031251620401} is an apocalyptic number.

3031251620401 is the 1741049-th square number.

3031251620401 is the 870525-th centered octagonal number.

It is an amenable number.

3031251620401 is a deficient number, since it is larger than the sum of its proper divisors (1741050).

3031251620401 is an frugal number, since it uses more digits than its factorization.

3031251620401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482098 (or 1741049 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 3031251620401 in words is "three trillion, thirty-one billion, two hundred fifty-one million, six hundred twenty thousand, four hundred one".