123313331100 has 36 divisors (see below), whose sum is σ = 356786572184. Its totient is φ = 32883554880.

The previous prime is 123313331087. The next prime is 123313331111. The reversal of 123313331100 is 1133313321.

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, 205521919 + ... + 205522518.

Almost surely, 2^123313331100 is an apocalyptic number.

123313331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123313331100 is an abundant number, since it is smaller than the sum of its proper divisors (233473241084).

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

123313331100 is a wasteful number, since it uses less digits than its factorization.

123313331100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411044454 (or 411044447 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 123313331100 its reverse (1133313321), we get a palindrome (124446644421).

The spelling of 123313331100 in words is "one hundred twenty-three billion, three hundred thirteen million, three hundred thirty-one thousand, one hundred".