1823400123 has 8 divisors (see below), whose sum is σ = 2433522000. Its totient is φ = 1214439168.

The previous prime is 1823400121. The next prime is 1823400157. The reversal of 1823400123 is 3210043281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1823400123 - 2¹ = 1823400121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1823400093 and 1823400102.

It is not an unprimeable number, because it can be changed into a prime (1823400121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286558 + ... + 292851.

It is an arithmetic number, because the mean of its divisors is an integer number (304190250).

Almost surely, 2^1823400123 is an apocalyptic number.

1823400123 is a deficient number, since it is larger than the sum of its proper divisors (610121877).

1823400123 is a wasteful number, since it uses less digits than its factorization.

1823400123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580461.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1823400123 is about 42701.2894770170. The cubic root of 1823400123 is about 1221.6889898210.

The spelling of 1823400123 in words is "one billion, eight hundred twenty-three million, four hundred thousand, one hundred twenty-three".