102123012103100 has 18 divisors (see below), whose sum is σ = 221606936263944. Its totient is φ = 40849204841200.

The previous prime is 102123012103009. The next prime is 102123012103117. The reversal of 102123012103100 is 1301210321201.

It is a super-2 number, since 2×102123012103100² (a number of 29 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 5 ways as a sum of consecutive naturals, for example, 510615060416 + ... + 510615060615.

It is an arithmetic number, because the mean of its divisors is an integer number (12311496459108).

Almost surely, 2^{102123012103100} is an apocalyptic number.

102123012103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102123012103100 is an abundant number, since it is smaller than the sum of its proper divisors (119483924160844).

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

102123012103100 is a wasteful number, since it uses less digits than its factorization.

102123012103100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021230121045 (or 1021230121038 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102123012103100 its reverse (1301210321201), we get a palindrome (103424222424301).

The spelling of 102123012103100 in words is "one hundred two trillion, one hundred twenty-three billion, twelve million, one hundred three thousand, one hundred".