121131000313 has 24 divisors (see below), whose sum is σ = 131134438400. Its totient is φ = 111763903680.

The previous prime is 121131000299. The next prime is 121131000343. The reversal of 121131000313 is 313000131121.

It is a de Polignac number, because none of the positive numbers 2^k-121131000313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121131000343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5121088 + ... + 5144686.

Almost surely, 2^121131000313 is an apocalyptic number.

It is an amenable number.

121131000313 is a deficient number, since it is larger than the sum of its proper divisors (10003438087).

121131000313 is a wasteful number, since it uses less digits than its factorization.

121131000313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23989 (or 23966 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 121131000313 its reverse (313000131121), we get a palindrome (434131131434).

The spelling of 121131000313 in words is "one hundred twenty-one billion, one hundred thirty-one million, three hundred thirteen", and thus it is an aban number.