121120322142423 has 4 divisors (see below), whose sum is σ = 161493762856568. Its totient is φ = 80746881428280.

The previous prime is 121120322142319. The next prime is 121120322142427. The reversal of 121120322142423 is 324241223021121.

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

It is not a de Polignac number, because 121120322142423 - 2⁹ = 121120322141911 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 (121120322142427) 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, 20186720357068 + ... + 20186720357073.

It is an arithmetic number, because the mean of its divisors is an integer number (40373440714142).

Almost surely, 2^{121120322142423} is an apocalyptic number.

121120322142423 is a deficient number, since it is larger than the sum of its proper divisors (40373440714145).

121120322142423 is an equidigital number, since it uses as much as digits as its factorization.

121120322142423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40373440714144.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 121120322142423 its reverse (324241223021121), we get a palindrome (445361545163544).

The spelling of 121120322142423 in words is "one hundred twenty-one trillion, one hundred twenty billion, three hundred twenty-two million, one hundred forty-two thousand, four hundred twenty-three".