11423531434 has 32 divisors (see below), whose sum is σ = 20224106496. Its totient is φ = 4735715760.

The previous prime is 11423531419. The next prime is 11423531461. The reversal of 11423531434 is 43413532411.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 11423531396 and 11423531405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255369 + ... + 1264435.

It is an arithmetic number, because the mean of its divisors is an integer number (632003328).

Almost surely, 2^11423531434 is an apocalyptic number.

11423531434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11423531434 is a deficient number, since it is larger than the sum of its proper divisors (8800575062).

11423531434 is a wasteful number, since it uses less digits than its factorization.

11423531434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12010.

The product of its digits is 17280, while the sum is 31.

The spelling of 11423531434 in words is "eleven billion, four hundred twenty-three million, five hundred thirty-one thousand, four hundred thirty-four".