121123033013 has 2 divisors, whose sum is σ = 121123033014. Its totient is φ = 121123033012.

The previous prime is 121123032991. The next prime is 121123033039. The reversal of 121123033013 is 310330321121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117250086724 + 3872946289 = 342418^2 + 62233^2 .

It is a cyclic number.

It is not a de Polignac number, because 121123033013 - 2⁸ = 121123032757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121123033043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561516506 + 60561516507.

It is an arithmetic number, because the mean of its divisors is an integer number (60561516507).

Almost surely, 2^121123033013 is an apocalyptic number.

It is an amenable number.

121123033013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121123033013 is an equidigital number, since it uses as much as digits as its factorization.

121123033013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 121123033013 its reverse (310330321121), we get a palindrome (431453354134).

The spelling of 121123033013 in words is "one hundred twenty-one billion, one hundred twenty-three million, thirty-three thousand, thirteen".