30131213022 has 48 divisors (see below), whose sum is σ = 66550947840. Its totient is φ = 9850352400.

The previous prime is 30131212973. The next prime is 30131213071. The reversal of 30131213022 is 22031213103.

30131213022 is a `hidden beast` number, since 301 + 312 + 1 + 30 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (30131212973) and next prime (30131213071).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30131212986 and 30131213004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182379 + ... + 305817.

It is an arithmetic number, because the mean of its divisors is an integer number (1386478080).

Almost surely, 2^30131213022 is an apocalyptic number.

30131213022 is an abundant number, since it is smaller than the sum of its proper divisors (36419734818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30131213022 is a wasteful number, since it uses less digits than its factorization.

30131213022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123709 (or 123706 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30131213022 its reverse (22031213103), we get a palindrome (52162426125).

The spelling of 30131213022 in words is "thirty billion, one hundred thirty-one million, two hundred thirteen thousand, twenty-two".