121320020001013 has 4 divisors (see below), whose sum is σ = 121350788460448. Its totient is φ = 121289251541580.

The previous prime is 121320020001007. The next prime is 121320020001023. The reversal of 121320020001013 is 310100020023121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121320020001013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320020001023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15384223803 + ... + 15384231688.

It is an arithmetic number, because the mean of its divisors is an integer number (30337697115112).

Almost surely, 2^{121320020001013} is an apocalyptic number.

It is an amenable number.

121320020001013 is a deficient number, since it is larger than the sum of its proper divisors (30768459435).

121320020001013 is an equidigital number, since it uses as much as digits as its factorization.

121320020001013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30768459434.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121320020001013 its reverse (310100020023121), we get a palindrome (431420040024134).

The spelling of 121320020001013 in words is "one hundred twenty-one trillion, three hundred twenty billion, twenty million, one thousand, thirteen".