23445455031421 has 4 divisors (see below), whose sum is σ = 24824599445052. Its totient is φ = 22066310617792.

The previous prime is 23445455031409. The next prime is 23445455031431. The reversal of 23445455031421 is 12413055454432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18577298199321 + 4868156832100 = 4310139^2 + 2206390^2 .

It is a cyclic number.

It is not a de Polignac number, because 23445455031421 - 2²⁵ = 23445421476989 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 (23445455031431) 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, 689572206790 + ... + 689572206823.

It is an arithmetic number, because the mean of its divisors is an integer number (6206149861263).

Almost surely, 2^{23445455031421} is an apocalyptic number.

It is an amenable number.

23445455031421 is a deficient number, since it is larger than the sum of its proper divisors (1379144413631).

23445455031421 is a wasteful number, since it uses less digits than its factorization.

23445455031421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379144413630.

The product of its (nonzero) digits is 1152000, while the sum is 43.

The spelling of 23445455031421 in words is "twenty-three trillion, four hundred forty-five billion, four hundred fifty-five million, thirty-one thousand, four hundred twenty-one".