31413250121 has 8 divisors (see below), whose sum is σ = 34271846688. Its totient is φ = 28555128000.

The previous prime is 31413250091. The next prime is 31413250123. The reversal of 31413250121 is 12105231413.

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-31413250121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31413250123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27686 + ... + 252176.

It is an arithmetic number, because the mean of its divisors is an integer number (4283980836).

Almost surely, 2^31413250121 is an apocalyptic number.

It is an amenable number.

31413250121 is a deficient number, since it is larger than the sum of its proper divisors (2858596567).

31413250121 is a wasteful number, since it uses less digits than its factorization.

31413250121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237223.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 31413250121 its reverse (12105231413), we get a palindrome (43518481534).

The spelling of 31413250121 in words is "thirty-one billion, four hundred thirteen million, two hundred fifty thousand, one hundred twenty-one".