202423121440123 has 8 divisors (see below), whose sum is σ = 203458602195200. Its totient is φ = 201387823476840.

The previous prime is 202423121440087. The next prime is 202423121440151. The reversal of 202423121440123 is 321044121324202.

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 202423121440123 - 2¹³ = 202423121431931 is a prime.

It is a super-2 number, since 2×202423121440123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202423121440823) 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, 43477215 + ... + 47907352.

It is an arithmetic number, because the mean of its divisors is an integer number (25432325274400).

Almost surely, 2^{202423121440123} is an apocalyptic number.

202423121440123 is a deficient number, since it is larger than the sum of its proper divisors (1035480755077).

202423121440123 is a wasteful number, since it uses less digits than its factorization.

202423121440123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91395897.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 202423121440123 its reverse (321044121324202), we get a palindrome (523467242764325).

The spelling of 202423121440123 in words is "two hundred two trillion, four hundred twenty-three billion, one hundred twenty-one million, four hundred forty thousand, one hundred twenty-three".