121303410423 has 16 divisors (see below), whose sum is σ = 174200979456. Its totient is φ = 74638942560.

The previous prime is 121303410419. The next prime is 121303410497. The reversal of 121303410423 is 324014303121.

It is a happy number.

It is not a de Polignac number, because 121303410423 - 2² = 121303410419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121303410393 and 121303410402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303410023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129586 + ... + 509312.

It is an arithmetic number, because the mean of its divisors is an integer number (10887561216).

Almost surely, 2^121303410423 is an apocalyptic number.

121303410423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121303410423 is a deficient number, since it is larger than the sum of its proper divisors (52897569033).

121303410423 is a wasteful number, since it uses less digits than its factorization.

121303410423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387934.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121303410423 its reverse (324014303121), we get a palindrome (445317713544).

The spelling of 121303410423 in words is "one hundred twenty-one billion, three hundred three million, four hundred ten thousand, four hundred twenty-three".