20120002121113 has 2 divisors, whose sum is σ = 20120002121114. Its totient is φ = 20120002121112.

The previous prime is 20120002121101. The next prime is 20120002121117. The reversal of 20120002121113 is 31112120002102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20066341325209 + 53660795904 = 4479547^2 + 231648^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120002121113 - 2²⁵ = 20119968566681 is a prime.

It is not a weakly prime, because it can be changed into another prime (20120002121117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060001060556 + 10060001060557.

It is an arithmetic number, because the mean of its divisors is an integer number (10060001060557).

Almost surely, 2^{20120002121113} is an apocalyptic number.

It is an amenable number.

20120002121113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120002121113 is an equidigital number, since it uses as much as digits as its factorization.

20120002121113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20120002121113 its reverse (31112120002102), we get a palindrome (51232122123215).

The spelling of 20120002121113 in words is "twenty trillion, one hundred twenty billion, two million, one hundred twenty-one thousand, one hundred thirteen".