11831306542 has 16 divisors (see below), whose sum is σ = 19362240000. Its totient is φ = 5377333240.

The previous prime is 11831306537. The next prime is 11831306609. The reversal of 11831306542 is 24560313811.

It is a junction number, because it is equal to n+sod(n) for n = 11831306498 and 11831306507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277059 + ... + 316897.

It is an arithmetic number, because the mean of its divisors is an integer number (1210140000).

Almost surely, 2^11831306542 is an apocalyptic number.

11831306542 is a deficient number, since it is larger than the sum of its proper divisors (7530933458).

11831306542 is a wasteful number, since it uses less digits than its factorization.

11831306542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53351.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 11831306542 in words is "eleven billion, eight hundred thirty-one million, three hundred six thousand, five hundred forty-two".