120157105139 has 2 divisors, whose sum is σ = 120157105140. Its totient is φ = 120157105138.

The previous prime is 120157105127. The next prime is 120157105157. The reversal of 120157105139 is 931501751021.

It is a weak prime.

It is an emirp because it is prime and its reverse (931501751021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120157105139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120157105099 and 120157105108.

It is not a weakly prime, because it can be changed into another prime (120157105199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60078552569 + 60078552570.

It is an arithmetic number, because the mean of its divisors is an integer number (60078552570).

Almost surely, 2^120157105139 is an apocalyptic number.

120157105139 is a deficient number, since it is larger than the sum of its proper divisors (1).

120157105139 is an equidigital number, since it uses as much as digits as its factorization.

120157105139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 35.

The spelling of 120157105139 in words is "one hundred twenty billion, one hundred fifty-seven million, one hundred five thousand, one hundred thirty-nine".