31401012213001 has 8 divisors (see below), whose sum is σ = 31444564741640. Its totient is φ = 31357461629952.

The previous prime is 31401012212971. The next prime is 31401012213047. The reversal of 31401012213001 is 10031221010413.

It can be written as a sum of positive squares in 4 ways, for example, as 5472904651776 + 25928107561225 = 2339424^2 + 5091965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31401012213001 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 31401012213001.

It is not an unprimeable number, because it can be changed into a prime (31401012213401) 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 7 ways as a sum of consecutive naturals, for example, 33455215 + ... + 34381003.

It is an arithmetic number, because the mean of its divisors is an integer number (3930570592705).

Almost surely, 2^{31401012213001} is an apocalyptic number.

It is an amenable number.

31401012213001 is a deficient number, since it is larger than the sum of its proper divisors (43552528639).

31401012213001 is an equidigital number, since it uses as much as digits as its factorization.

31401012213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972795.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31401012213001 its reverse (10031221010413), we get a palindrome (41432233223414).

The spelling of 31401012213001 in words is "thirty-one trillion, four hundred one billion, twelve million, two hundred thirteen thousand, one".