123471137830 has 64 divisors (see below), whose sum is σ = 239183290368. Its totient is φ = 45802673280.

The previous prime is 123471137771. The next prime is 123471137837. The reversal of 123471137830 is 38731174321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123471137837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 619107 + ... + 793873.

It is an arithmetic number, because the mean of its divisors is an integer number (3737238912).

Almost surely, 2^123471137830 is an apocalyptic number.

123471137830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123471137830 is a deficient number, since it is larger than the sum of its proper divisors (115712152538).

123471137830 is a wasteful number, since it uses less digits than its factorization.

123471137830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174901.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 123471137830 in words is "one hundred twenty-three billion, four hundred seventy-one million, one hundred thirty-seven thousand, eight hundred thirty".