1230123012170 has 48 divisors (see below), whose sum is σ = 2516654062440. Its totient is φ = 430294025088.

The previous prime is 1230123012101. The next prime is 1230123012199. The reversal of 1230123012170 is 712103210321.

It can be written as a sum of positive squares in 4 ways, for example, as 838446054889 + 391676957281 = 915667^2 + 625841^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13059005 + ... + 13152864.

Almost surely, 2^{1230123012170} is an apocalyptic number.

1230123012170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230123012170 is an abundant number, since it is smaller than the sum of its proper divisors (1286531050270).

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

1230123012170 is a wasteful number, since it uses less digits than its factorization.

1230123012170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26211927 (or 26211908 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 1230123012170 its reverse (712103210321), we get a palindrome (1942226222491).

The spelling of 1230123012170 in words is "one trillion, two hundred thirty billion, one hundred twenty-three million, twelve thousand, one hundred seventy".