31445225540001 has 128 divisors (see below), whose sum is σ = 59343822720000. Its totient is φ = 16006257082368.

The previous prime is 31445225539933. The next prime is 31445225540101. The reversal of 31445225540001 is 10004552254413.

31445225540001 is a `hidden beast` number, since 3 + 1 + 44 + 52 + 25 + 540 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 31445225540001 - 2⁷ = 31445225539873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31445225540101) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 138758881 + ... + 138985313.

It is an arithmetic number, because the mean of its divisors is an integer number (463623615000).

Almost surely, 2^{31445225540001} is an apocalyptic number.

It is an amenable number.

31445225540001 is a deficient number, since it is larger than the sum of its proper divisors (27898597179999).

31445225540001 is a wasteful number, since it uses less digits than its factorization.

31445225540001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228440 (or 228434 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 31445225540001 its reverse (10004552254413), we get a palindrome (41449777794414).

The spelling of 31445225540001 in words is "thirty-one trillion, four hundred forty-five billion, two hundred twenty-five million, five hundred forty thousand, one".