123131101300 has 36 divisors (see below), whose sum is σ = 268048214476. Its totient is φ = 49095072000.

The previous prime is 123131101241. The next prime is 123131101409. The reversal of 123131101300 is 3101131321.

It can be written as a sum of positive squares in 6 ways, for example, as 67561525476 + 55569575824 = 259926^2 + 235732^2 .

It is a super-2 number, since 2×123131101300² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1935651 + ... + 1998250.

Almost surely, 2^123131101300 is an apocalyptic number.

123131101300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123131101300 is an abundant number, since it is smaller than the sum of its proper divisors (144917113176).

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

123131101300 is a wasteful number, since it uses less digits than its factorization.

123131101300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934228 (or 3934221 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 123131101300 its reverse (3101131321), we get a palindrome (126232232621).

The spelling of 123131101300 in words is "one hundred twenty-three billion, one hundred thirty-one million, one hundred one thousand, three hundred".