30440153212 has 24 divisors (see below), whose sum is σ = 61318302080. Its totient is φ = 12951923760.

The previous prime is 30440153203. The next prime is 30440153221. The reversal of 30440153212 is 21235104403.

It is an interprime number because it is at equal distance from previous prime (30440153203) and next prime (30440153221).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3906714 + ... + 3914497.

Almost surely, 2^30440153212 is an apocalyptic number.

It is an amenable number.

30440153212 is an abundant number, since it is smaller than the sum of its proper divisors (30878148868).

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

30440153212 is a wasteful number, since it uses less digits than its factorization.

30440153212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7821361 (or 7821359 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 30440153212 its reverse (21235104403), we get a palindrome (51675257615).

The spelling of 30440153212 in words is "thirty billion, four hundred forty million, one hundred fifty-three thousand, two hundred twelve".