123153554023 has 4 divisors (see below), whose sum is σ = 123155099008. Its totient is φ = 123152009040.

The previous prime is 123153554009. The next prime is 123153554047. The reversal of 123153554023 is 320455351321.

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 123153554023 - 2¹³ = 123153545831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123153554023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123153558023) 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, 646023 + ... + 814648.

It is an arithmetic number, because the mean of its divisors is an integer number (30788774752).

Almost surely, 2^123153554023 is an apocalyptic number.

123153554023 is a deficient number, since it is larger than the sum of its proper divisors (1544985).

123153554023 is an equidigital number, since it uses as much as digits as its factorization.

123153554023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544984.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 123153554023 in words is "one hundred twenty-three billion, one hundred fifty-three million, five hundred fifty-four thousand, twenty-three".