20113032139 has 2 divisors, whose sum is σ = 20113032140. Its totient is φ = 20113032138.

The previous prime is 20113032133. The next prime is 20113032143. The reversal of 20113032139 is 93123031102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20113032139 - 2¹³ = 20113023947 is a prime.

It is not a weakly prime, because it can be changed into another prime (20113032133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056516069 + 10056516070.

It is an arithmetic number, because the mean of its divisors is an integer number (10056516070).

Almost surely, 2^20113032139 is an apocalyptic number.

20113032139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113032139 is an equidigital number, since it uses as much as digits as its factorization.

20113032139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 20113032139 in words is "twenty billion, one hundred thirteen million, thirty-two thousand, one hundred thirty-nine".