213580133731 has 8 divisors (see below), whose sum is σ = 215180756784. Its totient is φ = 211983718560.

The previous prime is 213580133719. The next prime is 213580133783. The reversal of 213580133731 is 137331085312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213580133731 - 2¹⁵ = 213580100963 is a prime.

It is a super-2 number, since 2×213580133731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213580133231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950040 + ... + 1153141.

It is an arithmetic number, because the mean of its divisors is an integer number (26897594598).

Almost surely, 2^213580133731 is an apocalyptic number.

213580133731 is a deficient number, since it is larger than the sum of its proper divisors (1600623053).

213580133731 is a wasteful number, since it uses less digits than its factorization.

213580133731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103941.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 213580133731 in words is "two hundred thirteen billion, five hundred eighty million, one hundred thirty-three thousand, seven hundred thirty-one".