1140402023 has 4 divisors (see below), whose sum is σ = 1142583048. Its totient is φ = 1138221000.

The previous prime is 1140402013. The next prime is 1140402037. The reversal of 1140402023 is 3202040411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1140402023 - 2¹⁶ = 1140336487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140401992 and 1140402010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140402013) 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, 1089728 + ... + 1090773.

It is an arithmetic number, because the mean of its divisors is an integer number (285645762).

Almost surely, 2^1140402023 is an apocalyptic number.

1140402023 is a deficient number, since it is larger than the sum of its proper divisors (2181025).

1140402023 is an equidigital number, since it uses as much as digits as its factorization.

1140402023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181024.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1140402023 is about 33769.8389543095. The cubic root of 1140402023 is about 1044.7667108946.

Adding to 1140402023 its reverse (3202040411), we get a palindrome (4342442434).

The spelling of 1140402023 in words is "one billion, one hundred forty million, four hundred two thousand, twenty-three".