1031313230121 has 32 divisors (see below), whose sum is σ = 1405930825728. Its totient is φ = 672328218240.

The previous prime is 1031313230083. The next prime is 1031313230137. The reversal of 1031313230121 is 1210323131301.

It is a happy number.

It is not a de Polignac number, because 1031313230121 - 2¹³ = 1031313221929 is a prime.

It is a super-2 number, since 2×1031313230121² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1031313230141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10232445 + ... + 10332741.

It is an arithmetic number, because the mean of its divisors is an integer number (43935338304).

Almost surely, 2^{1031313230121} is an apocalyptic number.

It is an amenable number.

1031313230121 is a deficient number, since it is larger than the sum of its proper divisors (374617595607).

1031313230121 is a wasteful number, since it uses less digits than its factorization.

1031313230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100821.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1031313230121 its reverse (1210323131301), we get a palindrome (2241636361422).

The spelling of 1031313230121 in words is "one trillion, thirty-one billion, three hundred thirteen million, two hundred thirty thousand, one hundred twenty-one".