1010400023 has 4 divisors (see below), whose sum is σ = 1035043968. Its totient is φ = 985756080.

The previous prime is 1010400007. The next prime is 1010400029. The reversal of 1010400023 is 3200040101.

It is a happy number.

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 1010400023 - 2⁴ = 1010400007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010399977 and 1010400013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010400029) 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, 12321911 + ... + 12321992.

It is an arithmetic number, because the mean of its divisors is an integer number (258760992).

Almost surely, 2^1010400023 is an apocalyptic number.

1010400023 is a deficient number, since it is larger than the sum of its proper divisors (24643945).

1010400023 is an equidigital number, since it uses as much as digits as its factorization.

1010400023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24643944.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1010400023 is about 31786.7900707196. The cubic root of 1010400023 is about 1003.4547254611.

Adding to 1010400023 its reverse (3200040101), we get a palindrome (4210440124).

The spelling of 1010400023 in words is "one billion, ten million, four hundred thousand, twenty-three".