30156722051 has 2 divisors, whose sum is σ = 30156722052. Its totient is φ = 30156722050.

The previous prime is 30156722033. The next prime is 30156722137. The reversal of 30156722051 is 15022765103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30156722051 - 2¹⁰ = 30156721027 is a prime.

It is a super-2 number, since 2×30156722051² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30156721999 and 30156722017.

It is not a weakly prime, because it can be changed into another prime (30156722551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15078361025 + 15078361026.

It is an arithmetic number, because the mean of its divisors is an integer number (15078361026).

Almost surely, 2^30156722051 is an apocalyptic number.

30156722051 is a deficient number, since it is larger than the sum of its proper divisors (1).

30156722051 is an equidigital number, since it uses as much as digits as its factorization.

30156722051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 30156722051 in words is "thirty billion, one hundred fifty-six million, seven hundred twenty-two thousand, fifty-one".