1011400423 has 16 divisors (see below), whose sum is σ = 1144604160. Its totient is φ = 885643200.

The previous prime is 1011400393. The next prime is 1011400477. The reversal of 1011400423 is 3240041101.

It is a cyclic number.

It is not a de Polignac number, because 1011400423 - 2¹⁷ = 1011269351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011400397 and 1011400406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011400483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21436 + ... + 49822.

It is an arithmetic number, because the mean of its divisors is an integer number (71537760).

Almost surely, 2^1011400423 is an apocalyptic number.

1011400423 is a deficient number, since it is larger than the sum of its proper divisors (133203737).

1011400423 is a wasteful number, since it uses less digits than its factorization.

1011400423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28518.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1011400423 is about 31802.5222741845. The cubic root of 1011400423 is about 1003.7857907025.

Adding to 1011400423 its reverse (3240041101), we get a palindrome (4251441524).

The spelling of 1011400423 in words is "one billion, eleven million, four hundred thousand, four hundred twenty-three".