123032191409 has 16 divisors (see below), whose sum is σ = 126048890880. Its totient is φ = 120062520000.

The previous prime is 123032191333. The next prime is 123032191433. The reversal of 123032191409 is 904191230321.

It is a cyclic number.

It is not a de Polignac number, because 123032191409 - 2⁸ = 123032191153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123032193409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2073464 + ... + 2131974.

It is an arithmetic number, because the mean of its divisors is an integer number (7878055680).

Almost surely, 2^123032191409 is an apocalyptic number.

It is an amenable number.

123032191409 is a deficient number, since it is larger than the sum of its proper divisors (3016699471).

123032191409 is a wasteful number, since it uses less digits than its factorization.

123032191409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58912.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 123032191409 in words is "one hundred twenty-three billion, thirty-two million, one hundred ninety-one thousand, four hundred nine".