31012025540401 has 4 divisors (see below), whose sum is σ = 31043573888832. Its totient is φ = 30980477191972.

The previous prime is 31012025540389. The next prime is 31012025540411. The reversal of 31012025540401 is 10404552021013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31012025540401 - 2¹⁵ = 31012025507633 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 31012025540401.

It is not an unprimeable number, because it can be changed into a prime (31012025540411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15774172741 + ... + 15774174706.

It is an arithmetic number, because the mean of its divisors is an integer number (7760893472208).

Almost surely, 2^{31012025540401} is an apocalyptic number.

It is an amenable number.

31012025540401 is a deficient number, since it is larger than the sum of its proper divisors (31548348431).

31012025540401 is an equidigital number, since it uses as much as digits as its factorization.

31012025540401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31548348430.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 31012025540401 its reverse (10404552021013), we get a palindrome (41416577561414).

The spelling of 31012025540401 in words is "thirty-one trillion, twelve billion, twenty-five million, five hundred forty thousand, four hundred one".