1123457923619 has 16 divisors (see below), whose sum is σ = 1209081177600. Its totient is φ = 1040534027424.

The previous prime is 1123457923603. The next prime is 1123457923633. The reversal of 1123457923619 is 9163297543211.

It is a cyclic number.

It is not a de Polignac number, because 1123457923619 - 2⁴ = 1123457923603 is a prime.

It is a super-2 number, since 2×1123457923619² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123457923669) 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, 116417 + ... + 1503485.

It is an arithmetic number, because the mean of its divisors is an integer number (75567573600).

Almost surely, 2^{1123457923619} is an apocalyptic number.

1123457923619 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1123457923619 is a deficient number, since it is larger than the sum of its proper divisors (85623253981).

1123457923619 is a wasteful number, since it uses less digits than its factorization.

1123457923619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388042.

The product of its digits is 2449440, while the sum is 53.

The spelling of 1123457923619 in words is "one trillion, one hundred twenty-three billion, four hundred fifty-seven million, nine hundred twenty-three thousand, six hundred nineteen".