121300000002031 has 32 divisors (see below), whose sum is σ = 125667953832960. Its totient is φ = 117013555347456.

The previous prime is 121300000002023. The next prime is 121300000002043. The reversal of 121300000002031 is 130200000003121.

It is a cyclic number.

It is not a de Polignac number, because 121300000002031 - 2³ = 121300000002023 is a prime.

It is a super-3 number, since 3×121300000002031³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300000002091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2930851320 + ... + 2930892706.

It is an arithmetic number, because the mean of its divisors is an integer number (3927123557280).

Almost surely, 2^{121300000002031} is an apocalyptic number.

121300000002031 is a deficient number, since it is larger than the sum of its proper divisors (4367953830929).

121300000002031 is an equidigital number, since it uses as much as digits as its factorization.

121300000002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43263.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 121300000002031 its reverse (130200000003121), we get a palindrome (251500000005152).

The spelling of 121300000002031 in words is "one hundred twenty-one trillion, three hundred billion, two thousand, thirty-one".