1115400023 has 2 divisors, whose sum is σ = 1115400024. Its totient is φ = 1115400022.

The previous prime is 1115399977. The next prime is 1115400037. The reversal of 1115400023 is 3200045111.

It is a strong prime.

It is an emirp because it is prime and its reverse (3200045111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1115400023 - 2¹⁸ = 1115137879 is a prime.

It is a super-2 number, since 2×1115400023² = 2488234422616801058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1115399974 and 1115400010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115400053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557700011 + 557700012.

It is an arithmetic number, because the mean of its divisors is an integer number (557700012).

Almost surely, 2^1115400023 is an apocalyptic number.

1115400023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115400023 is an equidigital number, since it uses as much as digits as its factorization.

1115400023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1115400023 is about 33397.6050488654. The cubic root of 1115400023 is about 1037.0751222582.

Adding to 1115400023 its reverse (3200045111), we get a palindrome (4315445134).

The spelling of 1115400023 in words is "one billion, one hundred fifteen million, four hundred thousand, twenty-three".