2031321000 has 64 divisors (see below), whose sum is σ = 6337730880. Its totient is φ = 541684800.

The previous prime is 2031320987. The next prime is 2031321029. The reversal of 2031321000 is 1231302.

It is a happy number.

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

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, 335554 + ... + 341553.

It is an arithmetic number, because the mean of its divisors is an integer number (99027045).

Almost surely, 2^2031321000 is an apocalyptic number.

2031321000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031321000 is an abundant number, since it is smaller than the sum of its proper divisors (4306409880).

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

2031321000 is a wasteful number, since it uses less digits than its factorization.

2031321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677131 (or 677117 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2031321000 is about 45070.1786106956. The cubic root of 2031321000 is about 1266.4640103608.

Adding to 2031321000 its reverse (1231302), we get a palindrome (2032552302).

The spelling of 2031321000 in words is "two billion, thirty-one million, three hundred twenty-one thousand".