31362251240401 has 9 divisors (see below), whose sum is σ = 32785247949321. Its totient is φ = 29998551895092.

The previous prime is 31362251240393. The next prime is 31362251240407. The reversal of 31362251240401 is 10404215226313.

The square root of 31362251240401 is 5600201.

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

It is not a de Polignac number, because 31362251240401 - 2³ = 31362251240393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31362251240407) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 128682880 + ... + 128926366.

Almost surely, 2^{31362251240401} is an apocalyptic number.

31362251240401 is the 5600201-st square number.

31362251240401 is the 2800101-st centered octagonal number.

It is an amenable number.

31362251240401 is a deficient number, since it is larger than the sum of its proper divisors (1422996708920).

31362251240401 is an frugal number, since it uses more digits than its factorization.

31362251240401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487020 (or 243510 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 31362251240401 its reverse (10404215226313), we get a palindrome (41766466466714).

The spelling of 31362251240401 in words is "thirty-one trillion, three hundred sixty-two billion, two hundred fifty-one million, two hundred forty thousand, four hundred one".