31000414121 has 16 divisors (see below), whose sum is σ = 31757806080. Its totient is φ = 30252519360.

The previous prime is 31000414061. The next prime is 31000414157. The reversal of 31000414121 is 12141400013.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31000414121 - 2⁶ = 31000414057 is a prime.

It is a super-2 number, since 2×31000414121² (a number of 22 digits) contains 22 as substring.

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 31000414121.

It is not an unprimeable number, because it can be changed into a prime (31000414021) 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, 12667520 + ... + 12669966.

It is an arithmetic number, because the mean of its divisors is an integer number (1984862880).

Almost surely, 2^31000414121 is an apocalyptic number.

It is an amenable number.

31000414121 is a deficient number, since it is larger than the sum of its proper divisors (757391959).

31000414121 is a wasteful number, since it uses less digits than its factorization.

31000414121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31000414121 its reverse (12141400013), we get a palindrome (43141814134).

The spelling of 31000414121 in words is "thirty-one billion, four hundred fourteen thousand, one hundred twenty-one".