213143042040 has 32 divisors (see below), whose sum is σ = 639429126480. Its totient is φ = 56838144512.

The previous prime is 213143042023. The next prime is 213143042081. The reversal of 213143042040 is 40240341312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 213143042040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888095889 + ... + 888096128.

Almost surely, 2^213143042040 is an apocalyptic number.

213143042040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213143042040 is an abundant number, since it is smaller than the sum of its proper divisors (426286084440).

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

213143042040 is a wasteful number, since it uses less digits than its factorization.

213143042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776192031 (or 1776192027 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 213143042040 its reverse (40240341312), we get a palindrome (253383383352).

The spelling of 213143042040 in words is "two hundred thirteen billion, one hundred forty-three million, forty-two thousand, forty".