111542397490 has 32 divisors (see below), whose sum is σ = 204644880000. Its totient is φ = 43760727168.

The previous prime is 111542397457. The next prime is 111542397553. The reversal of 111542397490 is 94793245111.

It is a super-3 number, since 3×111542397490³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111542397490.

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, 43686 + ... + 474334.

It is an arithmetic number, because the mean of its divisors is an integer number (6395152500).

Almost surely, 2^111542397490 is an apocalyptic number.

111542397490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111542397490 is a deficient number, since it is larger than the sum of its proper divisors (93102482510).

111542397490 is a wasteful number, since it uses less digits than its factorization.

111542397490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431154.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 111542397490 in words is "one hundred eleven billion, five hundred forty-two million, three hundred ninety-seven thousand, four hundred ninety".