30002131000 has 64 divisors (see below), whose sum is σ = 71252981280. Its totient is φ = 11821708800.

The previous prime is 30002130953. The next prime is 30002131001. The reversal of 30002131000 is 13120003.

It is a super-2 number, since 2×30002131000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002131001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156897 + ... + 290896.

Almost surely, 2^30002131000 is an apocalyptic number.

It is an amenable number.

30002131000 is an abundant number, since it is smaller than the sum of its proper divisors (41250850280).

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

30002131000 is a wasteful number, since it uses less digits than its factorization.

30002131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447881 (or 447867 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 30002131000 its reverse (13120003), we get a palindrome (30015251003).

The spelling of 30002131000 in words is "thirty billion, two million, one hundred thirty-one thousand".