123070398172 has 12 divisors (see below), whose sum is σ = 216922645240. Its totient is φ = 61092499536.

The previous prime is 123070398151. The next prime is 123070398173. The reversal of 123070398172 is 271893070321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123070398173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110674263 + ... + 110675374.

Almost surely, 2^123070398172 is an apocalyptic number.

It is an amenable number.

123070398172 is a deficient number, since it is larger than the sum of its proper divisors (93852247068).

123070398172 is a wasteful number, since it uses less digits than its factorization.

123070398172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221349780 (or 221349778 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 123070398172 in words is "one hundred twenty-three billion, seventy million, three hundred ninety-eight thousand, one hundred seventy-two".