31030023000 has 128 divisors (see below), whose sum is σ = 96882402240. Its totient is φ = 8268800000.

The previous prime is 31030022993. The next prime is 31030023047. The reversal of 31030023000 is 32003013.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5700280 + ... + 5705720.

Almost surely, 2^31030023000 is an apocalyptic number.

31030023000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31030023000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48441201120).

31030023000 is an abundant number, since it is smaller than the sum of its proper divisors (65852379240).

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

31030023000 is a wasteful number, since it uses less digits than its factorization.

31030023000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7366 (or 7352 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 31030023000 its reverse (32003013), we get a palindrome (31062026013).

The spelling of 31030023000 in words is "thirty-one billion, thirty million, twenty-three thousand".