201213234040 has 128 divisors (see below), whose sum is σ = 581432463360. Its totient is φ = 60911921664.

The previous prime is 201213234037. The next prime is 201213234073. The reversal of 201213234040 is 40432312102.

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, 1117984 + ... + 1285423.

It is an arithmetic number, because the mean of its divisors is an integer number (4542441120).

Almost surely, 2^201213234040 is an apocalyptic number.

201213234040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201213234040 is an abundant number, since it is smaller than the sum of its proper divisors (380219229320).

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

201213234040 is a wasteful number, since it uses less digits than its factorization.

201213234040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403461 (or 2403457 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 201213234040 its reverse (40432312102), we get a palindrome (241645546142).

The spelling of 201213234040 in words is "two hundred one billion, two hundred thirteen million, two hundred thirty-four thousand, forty".