961121423 has 4 divisors (see below), whose sum is σ = 983473128. Its totient is φ = 938769720.

The previous prime is 961121417. The next prime is 961121449. The reversal of 961121423 is 324121169.

961121423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 961121423 - 2¹² = 961117327 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 (961121453) 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, 11175788 + ... + 11175873.

It is an arithmetic number, because the mean of its divisors is an integer number (245868282).

Almost surely, 2^961121423 is an apocalyptic number.

961121423 is a deficient number, since it is larger than the sum of its proper divisors (22351705).

961121423 is a wasteful number, since it uses less digits than its factorization.

961121423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22351704.

The product of its digits is 2592, while the sum is 29.

The square root of 961121423 is about 31001.9583736254. The cubic root of 961121423 is about 986.8688006680.

The spelling of 961121423 in words is "nine hundred sixty-one million, one hundred twenty-one thousand, four hundred twenty-three".