123201312331000 has 64 divisors (see below), whose sum is σ = 300825465295680. Its totient is φ = 47137893404800.

The previous prime is 123201312330959. The next prime is 123201312331001. The reversal of 123201312331000 is 133213102321.

It is a super-2 number, since 2×123201312331000² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123201312331001) 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, 2678266399 + ... + 2678312398.

It is an arithmetic number, because the mean of its divisors is an integer number (4700397895245).

Almost surely, 2^{123201312331000} is an apocalyptic number.

123201312331000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123201312331000 is an abundant number, since it is smaller than the sum of its proper divisors (177624152964680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123201312331000 is a wasteful number, since it uses less digits than its factorization.

123201312331000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356578841 (or 5356578827 counting only the distinct ones).

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

Adding to 123201312331000 its reverse (133213102321), we get a palindrome (123334525433321).

The spelling of 123201312331000 in words is "one hundred twenty-three trillion, two hundred one billion, three hundred twelve million, three hundred thirty-one thousand".