30021002231 has 12 divisors (see below), whose sum is σ = 34564603464. Its totient is φ = 25855405200.

The previous prime is 30021002213. The next prime is 30021002233. The reversal of 30021002231 is 13220012003.

It is a happy number.

It is not a de Polignac number, because 30021002231 - 2²² = 30016807927 is a prime.

It is a super-2 number, since 2×30021002231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021002233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3776060 + ... + 3784001.

It is an arithmetic number, because the mean of its divisors is an integer number (2880383622).

Almost surely, 2^30021002231 is an apocalyptic number.

30021002231 is a deficient number, since it is larger than the sum of its proper divisors (4543601233).

30021002231 is a wasteful number, since it uses less digits than its factorization.

30021002231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7560110 (or 7560091 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30021002231 its reverse (13220012003), we get a palindrome (43241014234).

The spelling of 30021002231 in words is "thirty billion, twenty-one million, two thousand, two hundred thirty-one".