231255036142 has 8 divisors (see below), whose sum is σ = 373565827656. Its totient is φ = 106733093592.

The previous prime is 231255036137. The next prime is 231255036143. The reversal of 231255036142 is 241630552132.

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

It is a junction number, because it is equal to n+sod(n) for n = 231255036098 and 231255036107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231255036143) 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, 4447212208 + ... + 4447212259.

It is an arithmetic number, because the mean of its divisors is an integer number (46695728457).

Almost surely, 2^231255036142 is an apocalyptic number.

231255036142 is a deficient number, since it is larger than the sum of its proper divisors (142310791514).

231255036142 is a wasteful number, since it uses less digits than its factorization.

231255036142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8894424482.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 231255036142 its reverse (241630552132), we get a palindrome (472885588274).

The spelling of 231255036142 in words is "two hundred thirty-one billion, two hundred fifty-five million, thirty-six thousand, one hundred forty-two".