231552214247 has 2 divisors, whose sum is σ = 231552214248. Its totient is φ = 231552214246.

The previous prime is 231552214121. The next prime is 231552214253. The reversal of 231552214247 is 742412255132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231552214247 - 2³⁶ = 162832737511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231552214247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231552213247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115776107123 + 115776107124.

It is an arithmetic number, because the mean of its divisors is an integer number (115776107124).

Almost surely, 2^231552214247 is an apocalyptic number.

231552214247 is a deficient number, since it is larger than the sum of its proper divisors (1).

231552214247 is an equidigital number, since it uses as much as digits as its factorization.

231552214247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 38.

Adding to 231552214247 its reverse (742412255132), we get a palindrome (973964469379).

The spelling of 231552214247 in words is "two hundred thirty-one billion, five hundred fifty-two million, two hundred fourteen thousand, two hundred forty-seven".