30012203021131 has 4 divisors (see below), whose sum is σ = 30014846580712. Its totient is φ = 30009559461552.

The previous prime is 30012203021123. The next prime is 30012203021149. The reversal of 30012203021131 is 13112030221003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30012203021131 - 2³ = 30012203021123 is a prime.

It is a super-2 number, since 2×30012203021131² (a number of 28 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 = 30012203021099 and 30012203021108.

It is not an unprimeable number, because it can be changed into a prime (30012203021111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321762761 + ... + 1321785466.

It is an arithmetic number, because the mean of its divisors is an integer number (7503711645178).

Almost surely, 2^{30012203021131} is an apocalyptic number.

30012203021131 is a deficient number, since it is larger than the sum of its proper divisors (2643559581).

30012203021131 is a wasteful number, since it uses less digits than its factorization.

30012203021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643559580.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30012203021131 its reverse (13112030221003), we get a palindrome (43124233242134).

The spelling of 30012203021131 in words is "thirty trillion, twelve billion, two hundred three million, twenty-one thousand, one hundred thirty-one".