231552214213 has 8 divisors (see below), whose sum is σ = 233952223232. Its totient is φ = 229152468096.

The previous prime is 231552214121. The next prime is 231552214247. The reversal of 231552214213 is 312412255132.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231552214213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231552214253) 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, 2058556 + ... + 2168122.

It is an arithmetic number, because the mean of its divisors is an integer number (29244027904).

Almost surely, 2^231552214213 is an apocalyptic number.

It is an amenable number.

231552214213 is a deficient number, since it is larger than the sum of its proper divisors (2400009019).

231552214213 is a wasteful number, since it uses less digits than its factorization.

231552214213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131451.

The product of its digits is 14400, while the sum is 31.

Adding to 231552214213 its reverse (312412255132), we get a palindrome (543964469345).

The spelling of 231552214213 in words is "two hundred thirty-one billion, five hundred fifty-two million, two hundred fourteen thousand, two hundred thirteen".