11631106542 has 32 divisors (see below), whose sum is σ = 25734392064. Its totient is φ = 3474934400.

The previous prime is 11631106523. The next prime is 11631106559. The reversal of 11631106542 is 24560113611.

It is a happy number.

It is a congruent number.

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, 1236363 + ... + 1245734.

It is an arithmetic number, because the mean of its divisors is an integer number (804199752).

Almost surely, 2^11631106542 is an apocalyptic number.

11631106542 is an abundant number, since it is smaller than the sum of its proper divisors (14103285522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11631106542 is a wasteful number, since it uses less digits than its factorization.

11631106542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482184.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 11631106542 in words is "eleven billion, six hundred thirty-one million, one hundred six thousand, five hundred forty-two".