20612129051 has 2 divisors, whose sum is σ = 20612129052. Its totient is φ = 20612129050.

The previous prime is 20612129033. The next prime is 20612129063. The reversal of 20612129051 is 15092121602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20612129051 - 2⁶ = 20612128987 is a prime.

It is not a weakly prime, because it can be changed into another prime (20612129011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10306064525 + 10306064526.

It is an arithmetic number, because the mean of its divisors is an integer number (10306064526).

Almost surely, 2^20612129051 is an apocalyptic number.

20612129051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20612129051 is an equidigital number, since it uses as much as digits as its factorization.

20612129051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 20612129051 in words is "twenty billion, six hundred twelve million, one hundred twenty-nine thousand, fifty-one".