123231140512 has 48 divisors (see below), whose sum is σ = 245030304960. Its totient is φ = 61003611648.

The previous prime is 123231140497. The next prime is 123231140533. The reversal of 123231140512 is 215041132321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624453 + ... + 1698619.

It is an arithmetic number, because the mean of its divisors is an integer number (5104798020).

Almost surely, 2^123231140512 is an apocalyptic number.

It is an amenable number.

123231140512 is a deficient number, since it is larger than the sum of its proper divisors (121799164448).

123231140512 is a wasteful number, since it uses less digits than its factorization.

123231140512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74693 (or 74685 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 123231140512 its reverse (215041132321), we get a palindrome (338272272833).

The spelling of 123231140512 in words is "one hundred twenty-three billion, two hundred thirty-one million, one hundred forty thousand, five hundred twelve".