121120012013 has 32 divisors (see below), whose sum is σ = 172188737280. Its totient is φ = 81994613760.

The previous prime is 121120012007. The next prime is 121120012019. The reversal of 121120012013 is 310210021121.

It is an interprime number because it is at equal distance from previous prime (121120012007) and next prime (121120012019).

It is a cyclic number.

It is not a de Polignac number, because 121120012013 - 2¹⁰ = 121120010989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120012019) 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, 3541778 + ... + 3575811.

It is an arithmetic number, because the mean of its divisors is an integer number (5380898040).

Almost surely, 2^121120012013 is an apocalyptic number.

121120012013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121120012013 is a deficient number, since it is larger than the sum of its proper divisors (51068725267).

121120012013 is a wasteful number, since it uses less digits than its factorization.

121120012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7117637.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121120012013 its reverse (310210021121), we get a palindrome (431330033134).

The spelling of 121120012013 in words is "one hundred twenty-one billion, one hundred twenty million, twelve thousand, thirteen".