31410120021 has 16 divisors (see below), whose sum is σ = 47922083328. Its totient is φ = 17926498800.

The previous prime is 31410119959. The next prime is 31410120043. The reversal of 31410120021 is 12002101413.

It is not a de Polignac number, because 31410120021 - 2⁹ = 31410119509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31410121021) 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, 905115 + ... + 939176.

It is an arithmetic number, because the mean of its divisors is an integer number (2995130208).

Almost surely, 2^31410120021 is an apocalyptic number.

It is an amenable number.

31410120021 is a deficient number, since it is larger than the sum of its proper divisors (16511963307).

31410120021 is a wasteful number, since it uses less digits than its factorization.

31410120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845112.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 31410120021 its reverse (12002101413), we get a palindrome (43412221434).

The spelling of 31410120021 in words is "thirty-one billion, four hundred ten million, one hundred twenty thousand, twenty-one".