213113861340 has 48 divisors (see below), whose sum is σ = 597058344960. Its totient is φ = 56798026560.

The previous prime is 213113861243. The next prime is 213113861353. The reversal of 213113861340 is 43168311312.

It is a congruent number.

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, 904096 + ... + 1115175.

It is an arithmetic number, because the mean of its divisors is an integer number (12438715520).

Almost surely, 2^213113861340 is an apocalyptic number.

213113861340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213113861340 is an abundant number, since it is smaller than the sum of its proper divisors (383944483620).

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

213113861340 is a wasteful number, since it uses less digits than its factorization.

213113861340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021042 (or 2021040 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 213113861340 in words is "two hundred thirteen billion, one hundred thirteen million, eight hundred sixty-one thousand, three hundred forty".