102400123030 has 32 divisors (see below), whose sum is σ = 190337162400. Its totient is φ = 39640430592.

The previous prime is 102400123009. The next prime is 102400123043. The reversal of 102400123030 is 30321004201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102400122995 and 102400123013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1045515 + ... + 1139254.

It is an arithmetic number, because the mean of its divisors is an integer number (5948036325).

Almost surely, 2^102400123030 is an apocalyptic number.

102400123030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102400123030 is a deficient number, since it is larger than the sum of its proper divisors (87937039370).

102400123030 is a wasteful number, since it uses less digits than its factorization.

102400123030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184928.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 102400123030 its reverse (30321004201), we get a palindrome (132721127231).

The spelling of 102400123030 in words is "one hundred two billion, four hundred million, one hundred twenty-three thousand, thirty".