231311553350 has 48 divisors (see below), whose sum is σ = 440641684032. Its totient is φ = 90291468960.

The previous prime is 231311553349. The next prime is 231311553359. The reversal of 231311553350 is 53355113132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231311553359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2366549 + ... + 2462351.

It is an arithmetic number, because the mean of its divisors is an integer number (9180035084).

Almost surely, 2^231311553350 is an apocalyptic number.

231311553350 is a deficient number, since it is larger than the sum of its proper divisors (209330130682).

231311553350 is a wasteful number, since it uses less digits than its factorization.

231311553350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96981 (or 96976 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 32.

Adding to 231311553350 its reverse (53355113132), we get a palindrome (284666666482).

The spelling of 231311553350 in words is "two hundred thirty-one billion, three hundred eleven million, five hundred fifty-three thousand, three hundred fifty".