30122011031 has 6 divisors (see below), whose sum is σ = 35039890440. Its totient is φ = 25818866556.

The previous prime is 30122011021. The next prime is 30122011039. The reversal of 30122011031 is 13011022103.

It is not a de Polignac number, because 30122011031 - 2²² = 30117816727 is a prime.

It is a super-2 number, since 2×30122011031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30122010997 and 30122011015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122011039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 307367411 + ... + 307367508.

It is an arithmetic number, because the mean of its divisors is an integer number (5839981740).

Almost surely, 2^30122011031 is an apocalyptic number.

30122011031 is a deficient number, since it is larger than the sum of its proper divisors (4917879409).

30122011031 is an equidigital number, since it uses as much as digits as its factorization.

30122011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614734933 (or 614734926 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30122011031 its reverse (13011022103), we get a palindrome (43133033134).

The spelling of 30122011031 in words is "thirty billion, one hundred twenty-two million, eleven thousand, thirty-one".