31431323413401 has 16 divisors (see below), whose sum is σ = 42596274973440. Its totient is φ = 20610306961920.

The previous prime is 31431323413379. The next prime is 31431323413409. The reversal of 31431323413401 is 10431432313413.

It is not a de Polignac number, because 31431323413401 - 2⁶ = 31431323413337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31431323413409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8029296 + ... + 11284158.

It is an arithmetic number, because the mean of its divisors is an integer number (2662267185840).

Almost surely, 2^{31431323413401} is an apocalyptic number.

It is an amenable number.

31431323413401 is a deficient number, since it is larger than the sum of its proper divisors (11164951560039).

31431323413401 is a wasteful number, since it uses less digits than its factorization.

31431323413401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307696.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 31431323413401 its reverse (10431432313413), we get a palindrome (41862755726814).

The spelling of 31431323413401 in words is "thirty-one trillion, four hundred thirty-one billion, three hundred twenty-three million, four hundred thirteen thousand, four hundred one".