111141425540 has 24 divisors (see below), whose sum is σ = 233407050072. Its totient is φ = 44454654720.

The previous prime is 111141425531. The next prime is 111141425573. The reversal of 111141425540 is 45524141111.

It can be written as a sum of positive squares in 4 ways, for example, as 18072500356 + 93068925184 = 134434^2 + 305072^2 .

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, 414122 + ... + 627518.

It is an arithmetic number, because the mean of its divisors is an integer number (9725293753).

Almost surely, 2^111141425540 is an apocalyptic number.

111141425540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111141425540 is an abundant number, since it is smaller than the sum of its proper divisors (122265624532).

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

111141425540 is a wasteful number, since it uses less digits than its factorization.

111141425540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239447 (or 239445 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

Adding to 111141425540 its reverse (45524141111), we get a palindrome (156665566651).

The spelling of 111141425540 in words is "one hundred eleven billion, one hundred forty-one million, four hundred twenty-five thousand, five hundred forty".