1230312123100 has 36 divisors (see below), whose sum is σ = 2669898506184. Its totient is φ = 492102508480.

The previous prime is 1230312123083. The next prime is 1230312123113. The reversal of 1230312123100 is 13212130321.

It is a super-2 number, since 2×1230312123100² (a number of 25 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, 2029527 + ... + 2565073.

It is an arithmetic number, because the mean of its divisors is an integer number (74163847394).

Almost surely, 2^{1230312123100} is an apocalyptic number.

1230312123100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230312123100 is an abundant number, since it is smaller than the sum of its proper divisors (1439586383084).

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

1230312123100 is a wasteful number, since it uses less digits than its factorization.

1230312123100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558534 (or 558527 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1230312123100 its reverse (13212130321), we get a palindrome (1243524253421).

The spelling of 1230312123100 in words is "one trillion, two hundred thirty billion, three hundred twelve million, one hundred twenty-three thousand, one hundred".