1011940423 has 8 divisors (see below), whose sum is σ = 1090530000. Its totient is φ = 933457728.

The previous prime is 1011940403. The next prime is 1011940441. The reversal of 1011940423 is 3240491101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011940423 - 2²¹ = 1009843271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011940403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6478 + ... + 45451.

It is an arithmetic number, because the mean of its divisors is an integer number (136316250).

Almost surely, 2^1011940423 is an apocalyptic number.

1011940423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011940423 is a deficient number, since it is larger than the sum of its proper divisors (78589577).

1011940423 is a wasteful number, since it uses less digits than its factorization.

1011940423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53441.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1011940423 is about 31811.0110339172. The cubic root of 1011940423 is about 1003.9644037342.

The spelling of 1011940423 in words is "one billion, eleven million, nine hundred forty thousand, four hundred twenty-three".