30312003132 has 36 divisors (see below), whose sum is σ = 76638809520. Its totient is φ = 10101785472.

The previous prime is 30312003107. The next prime is 30312003149. The reversal of 30312003132 is 23130021303.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78468 + ... + 258420.

It is an arithmetic number, because the mean of its divisors is an integer number (2128855820).

Almost surely, 2^30312003132 is an apocalyptic number.

It is an amenable number.

30312003132 is an abundant number, since it is smaller than the sum of its proper divisors (46326806388).

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

30312003132 is a wasteful number, since it uses less digits than its factorization.

30312003132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184642 (or 184637 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30312003132 its reverse (23130021303), we get a palindrome (53442024435).

The spelling of 30312003132 in words is "thirty billion, three hundred twelve million, three thousand, one hundred thirty-two".