11823781235 has 32 divisors (see below), whose sum is σ = 17377846272. Its totient is φ = 7545605760.

The previous prime is 11823781223. The next prime is 11823781247. The reversal of 11823781235 is 53218732811.

It is an interprime number because it is at equal distance from previous prime (11823781223) and next prime (11823781247).

It is not a de Polignac number, because 11823781235 - 2⁸ = 11823780979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11823781192 and 11823781201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168701 + ... + 228270.

It is an arithmetic number, because the mean of its divisors is an integer number (543057696).

Almost surely, 2^11823781235 is an apocalyptic number.

11823781235 is a deficient number, since it is larger than the sum of its proper divisors (5554065037).

11823781235 is a wasteful number, since it uses less digits than its factorization.

11823781235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397043.

The product of its digits is 80640, while the sum is 41.

The spelling of 11823781235 in words is "eleven billion, eight hundred twenty-three million, seven hundred eighty-one thousand, two hundred thirty-five".