123121031332 has 48 divisors (see below), whose sum is σ = 239833101312. Its totient is φ = 54920327040.

The previous prime is 123121031323. The next prime is 123121031333. The reversal of 123121031332 is 233130121321.

It is not an unprimeable number, because it can be changed into a prime (123121031333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196673 + ... + 1295479.

It is an arithmetic number, because the mean of its divisors is an integer number (4996522944).

Almost surely, 2^123121031332 is an apocalyptic number.

It is an amenable number.

123121031332 is a deficient number, since it is larger than the sum of its proper divisors (116712069980).

123121031332 is a wasteful number, since it uses less digits than its factorization.

123121031332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99628 (or 99626 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123121031332 its reverse (233130121321), we get a palindrome (356251152653).

The spelling of 123121031332 in words is "one hundred twenty-three billion, one hundred twenty-one million, thirty-one thousand, three hundred thirty-two".