213031031000 has 32 divisors (see below), whose sum is σ = 498492614880. Its totient is φ = 85212412000.

The previous prime is 213031030999. The next prime is 213031031027. The reversal of 213031031000 is 130130312.

It is a super-2 number, since 2×213031031000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106514516 + ... + 106516515.

It is an arithmetic number, because the mean of its divisors is an integer number (15577894215).

Almost surely, 2^213031031000 is an apocalyptic number.

213031031000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213031031000 is an abundant number, since it is smaller than the sum of its proper divisors (285461583880).

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

213031031000 is a wasteful number, since it uses less digits than its factorization.

213031031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213031052 (or 213031038 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 213031031000 its reverse (130130312), we get a palindrome (213161161312).

The spelling of 213031031000 in words is "two hundred thirteen billion, thirty-one million, thirty-one thousand".