30031123000 has 64 divisors (see below), whose sum is σ = 73328224320. Its totient is φ = 11490160000.

The previous prime is 30031122971. The next prime is 30031123013. The reversal of 30031123000 is 32113003.

It is a super-2 number, since 2×30031123000² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629851 + ... + 675850.

It is an arithmetic number, because the mean of its divisors is an integer number (1145753505).

Almost surely, 2^30031123000 is an apocalyptic number.

It is an amenable number.

30031123000 is an abundant number, since it is smaller than the sum of its proper divisors (43297101320).

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

30031123000 is a wasteful number, since it uses less digits than its factorization.

30031123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305745 (or 1305731 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 30031123000 its reverse (32113003), we get a palindrome (30063236003).

The spelling of 30031123000 in words is "thirty billion, thirty-one million, one hundred twenty-three thousand".