213013111340 has 48 divisors (see below), whose sum is σ = 485193167424. Its totient is φ = 78237235200.

The previous prime is 213013111307. The next prime is 213013111369. The reversal of 213013111340 is 43111310312.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 7626416 + ... + 7654295.

It is an arithmetic number, because the mean of its divisors is an integer number (10108190988).

Almost surely, 2^213013111340 is an apocalyptic number.

213013111340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213013111340 is an abundant number, since it is smaller than the sum of its proper divisors (272180056084).

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

213013111340 is a wasteful number, since it uses less digits than its factorization.

213013111340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15280778 (or 15280776 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213013111340 its reverse (43111310312), we get a palindrome (256124421652).

The spelling of 213013111340 in words is "two hundred thirteen billion, thirteen million, one hundred eleven thousand, three hundred forty".