1110145431 has 4 divisors (see below), whose sum is σ = 1480193912. Its totient is φ = 740096952.

The previous prime is 1110145429. The next prime is 1110145453. The reversal of 1110145431 is 1345410111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1345410111 = 3 ⋅448470037.

It is not a de Polignac number, because 1110145431 - 2¹ = 1110145429 is a prime.

It is a super-2 number, since 2×1110145431² = 2464845755940351522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110145398 and 1110145407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110145331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185024236 + ... + 185024241.

It is an arithmetic number, because the mean of its divisors is an integer number (370048478).

Almost surely, 2^1110145431 is an apocalyptic number.

1110145431 is a deficient number, since it is larger than the sum of its proper divisors (370048481).

1110145431 is an equidigital number, since it uses as much as digits as its factorization.

1110145431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370048480.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1110145431 is about 33318.8449829822. The cubic root of 1110145431 is about 1035.4440224178. Note that the first 3 decimals are identical.

Adding to 1110145431 its reverse (1345410111), we get a palindrome (2455555542).

The spelling of 1110145431 in words is "one billion, one hundred ten million, one hundred forty-five thousand, four hundred thirty-one".