2031012500 has 72 divisors (see below), whose sum is σ = 4846752288. Its totient is φ = 738500000.

The previous prime is 2031012479. The next prime is 2031012509. The reversal of 2031012500 is 52101302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031012509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130115 + ... + 144885.

It is an arithmetic number, because the mean of its divisors is an integer number (67316004).

Almost surely, 2^2031012500 is an apocalyptic number.

2031012500 is a gapful number since it is divisible by the number (20) 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 2031012500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2423376144).

2031012500 is an abundant number, since it is smaller than the sum of its proper divisors (2815739788).

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

2031012500 is a wasteful number, since it uses less digits than its factorization.

2031012500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14811 (or 14789 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2031012500 is about 45066.7560403453. The cubic root of 2031012500 is about 1266.3998938035.

Adding to 2031012500 its reverse (52101302), we get a palindrome (2083113802).

The spelling of 2031012500 in words is "two billion, thirty-one million, twelve thousand, five hundred".