30120023122 has 32 divisors (see below), whose sum is σ = 55943091072. Its totient is φ = 11866708224.

The previous prime is 30120023107. The next prime is 30120023137. The reversal of 30120023122 is 22132002103.

It is an interprime number because it is at equal distance from previous prime (30120023107) and next prime (30120023137).

It is a junction number, because it is equal to n+sod(n) for n = 30120023096 and 30120023105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1461333 + ... + 1481800.

It is an arithmetic number, because the mean of its divisors is an integer number (1748221596).

Almost surely, 2^30120023122 is an apocalyptic number.

30120023122 is a deficient number, since it is larger than the sum of its proper divisors (25823067950).

30120023122 is a wasteful number, since it uses less digits than its factorization.

30120023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943202.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30120023122 its reverse (22132002103), we get a palindrome (52252025225).

The spelling of 30120023122 in words is "thirty billion, one hundred twenty million, twenty-three thousand, one hundred twenty-two".