30505142132 has 6 divisors (see below), whose sum is σ = 53383998738. Its totient is φ = 15252571064.

The previous prime is 30505142123. The next prime is 30505142141. The reversal of 30505142132 is 23124150503.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30505142123) and next prime (30505142141).

It can be written as a sum of positive squares in only one way, i.e., 18432406756 + 12072735376 = 135766^2 + 109876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3813142763 + ... + 3813142770.

It is an arithmetic number, because the mean of its divisors is an integer number (8897333123).

Almost surely, 2^30505142132 is an apocalyptic number.

It is an amenable number.

30505142132 is a deficient number, since it is larger than the sum of its proper divisors (22878856606).

30505142132 is a wasteful number, since it uses less digits than its factorization.

30505142132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626285537 (or 7626285535 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 30505142132 its reverse (23124150503), we get a palindrome (53629292635).

The spelling of 30505142132 in words is "thirty billion, five hundred five million, one hundred forty-two thousand, one hundred thirty-two".