30212129953 has 2 divisors, whose sum is σ = 30212129954. Its totient is φ = 30212129952.

The previous prime is 30212129903. The next prime is 30212130041. The reversal of 30212129953 is 35992121203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21131564689 + 9080565264 = 145367^2 + 95292^2 .

It is a cyclic number.

It is not a de Polignac number, because 30212129953 - 2²⁵ = 30178575521 is a prime.

It is not a weakly prime, because it can be changed into another prime (30212129903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106064976 + 15106064977.

It is an arithmetic number, because the mean of its divisors is an integer number (15106064977).

Almost surely, 2^30212129953 is an apocalyptic number.

It is an amenable number.

30212129953 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212129953 is an equidigital number, since it uses as much as digits as its factorization.

30212129953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 30212129953 in words is "thirty billion, two hundred twelve million, one hundred twenty-nine thousand, nine hundred fifty-three".