1261314423 has 20 divisors (see below), whose sum is σ = 1935114280. Its totient is φ = 818147952.

The previous prime is 1261314409. The next prime is 1261314437. The reversal of 1261314423 is 3244131621.

It is a happy number.

1261314423 is a `hidden beast` number, since 1 + 2 + 613 + 1 + 4 + 42 + 3 = 666.

1261314423 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1261314409) and next prime (1261314437).

It is not a de Polignac number, because 1261314423 - 2⁶ = 1261314359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261324423) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 207433 + ... + 213426.

It is an arithmetic number, because the mean of its divisors is an integer number (96755714).

Almost surely, 2^1261314423 is an apocalyptic number.

1261314423 is a deficient number, since it is larger than the sum of its proper divisors (673799857).

1261314423 is an equidigital number, since it uses as much as digits as its factorization.

1261314423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420908 (or 420899 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1261314423 is about 35514.9887089944. The cubic root of 1261314423 is about 1080.4577457770.

The spelling of 1261314423 in words is "one billion, two hundred sixty-one million, three hundred fourteen thousand, four hundred twenty-three".