121240141423 has 8 divisors (see below), whose sum is σ = 124575087488. Its totient is φ = 117908257824.

The previous prime is 121240141403. The next prime is 121240141427. The reversal of 121240141423 is 324141042121.

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 121240141423 - 2⁹ = 121240140911 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 (121240141427) 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, 685236 + ... + 843817.

It is an arithmetic number, because the mean of its divisors is an integer number (15571885936).

Almost surely, 2^121240141423 is an apocalyptic number.

121240141423 is a deficient number, since it is larger than the sum of its proper divisors (3334946065).

121240141423 is a wasteful number, since it uses less digits than its factorization.

121240141423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531233.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 121240141423 its reverse (324141042121), we get a palindrome (445381183544).

The spelling of 121240141423 in words is "one hundred twenty-one billion, two hundred forty million, one hundred forty-one thousand, four hundred twenty-three".