1011321423 has 32 divisors (see below), whose sum is σ = 1733990400. Its totient is φ = 570574368.

The previous prime is 1011321413. The next prime is 1011321433. The reversal of 1011321423 is 3241231101.

It is an interprime number because it is at equal distance from previous prime (1011321413) and next prime (1011321433).

It is not a de Polignac number, because 1011321423 - 2⁶ = 1011321359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011321396 and 1011321405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011321413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18936 + ... + 48797.

It is an arithmetic number, because the mean of its divisors is an integer number (54187200).

Almost surely, 2^1011321423 is an apocalyptic number.

1011321423 is a deficient number, since it is larger than the sum of its proper divisors (722668977).

1011321423 is an equidigital number, since it uses as much as digits as its factorization.

1011321423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67828 (or 67822 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1011321423 is about 31801.2802100796. The cubic root of 1011321423 is about 1003.7596549471.

Adding to 1011321423 its reverse (3241231101), we get a palindrome (4252552524).

The spelling of 1011321423 in words is "one billion, eleven million, three hundred twenty-one thousand, four hundred twenty-three".