231533414322351 has 4 divisors (see below), whose sum is σ = 308711219096472. Its totient is φ = 154355609548232.

The previous prime is 231533414322347. The next prime is 231533414322361. The reversal of 231533414322351 is 153223414335132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231533414322351 - 2² = 231533414322347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231533414322361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38588902387056 + ... + 38588902387061.

It is an arithmetic number, because the mean of its divisors is an integer number (77177804774118).

Almost surely, 2^{231533414322351} is an apocalyptic number.

231533414322351 is a deficient number, since it is larger than the sum of its proper divisors (77177804774121).

231533414322351 is an equidigital number, since it uses as much as digits as its factorization.

231533414322351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77177804774120.

The product of its digits is 777600, while the sum is 42.

Adding to 231533414322351 its reverse (153223414335132), we get a palindrome (384756828657483).

The spelling of 231533414322351 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, four hundred fourteen million, three hundred twenty-two thousand, three hundred fifty-one".