1123208913431 has 8 divisors (see below), whose sum is σ = 1237450685328. Its totient is φ = 1010989120000.

The previous prime is 1123208913377. The next prime is 1123208913443. The reversal of 1123208913431 is 1343198023211.

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

It is a cyclic number.

It is not a de Polignac number, because 1123208913431 - 2²⁶ = 1123141804567 is a prime.

It is a super-2 number, since 2×1123208913431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123208913461) 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 7 ways as a sum of consecutive naturals, for example, 505493450 + ... + 505495671.

It is an arithmetic number, because the mean of its divisors is an integer number (154681335666).

Almost surely, 2^{1123208913431} is an apocalyptic number.

1123208913431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123208913431 is a deficient number, since it is larger than the sum of its proper divisors (114241771897).

1123208913431 is a wasteful number, since it uses less digits than its factorization.

1123208913431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010989233.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 1123208913431 in words is "one trillion, one hundred twenty-three billion, two hundred eight million, nine hundred thirteen thousand, four hundred thirty-one".