20000232139 has 2 divisors, whose sum is σ = 20000232140. Its totient is φ = 20000232138.

The previous prime is 20000232113. The next prime is 20000232173. The reversal of 20000232139 is 93123200002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20000232139 - 2⁹ = 20000231627 is a prime.

It is a super-2 number, since 2×20000232139² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20000232739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000116069 + 10000116070.

It is an arithmetic number, because the mean of its divisors is an integer number (10000116070).

Almost surely, 2^20000232139 is an apocalyptic number.

20000232139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000232139 is an equidigital number, since it uses as much as digits as its factorization.

20000232139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The spelling of 20000232139 in words is "twenty billion, two hundred thirty-two thousand, one hundred thirty-nine".