1100140431 has 32 divisors (see below), whose sum is σ = 1726599168. Its totient is φ = 616619520.

The previous prime is 1100140427. The next prime is 1100140453. The reversal of 1100140431 is 1340410011.

It is not a de Polignac number, because 1100140431 - 2² = 1100140427 is a prime.

It is a super-2 number, since 2×1100140431² = 2420617935841731522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1100140431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100140231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6211 + ... + 47316.

It is an arithmetic number, because the mean of its divisors is an integer number (53956224).

Almost surely, 2^1100140431 is an apocalyptic number.

1100140431 is a deficient number, since it is larger than the sum of its proper divisors (626458737).

1100140431 is a wasteful number, since it uses less digits than its factorization.

1100140431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53591.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1100140431 is about 33168.3649129709. The cubic root of 1100140431 is about 1032.3240421110.

Adding to 1100140431 its reverse (1340410011), we get a palindrome (2440550442).

The spelling of 1100140431 in words is "one billion, one hundred million, one hundred forty thousand, four hundred thirty-one".