121423310342 has 4 divisors (see below), whose sum is σ = 182134965516. Its totient is φ = 60711655170.

The previous prime is 121423310321. The next prime is 121423310357. The reversal of 121423310342 is 243013324121.

121423310342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243013324121 = 1279 ⋅190002599.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30355827584 + ... + 30355827587.

It is an arithmetic number, because the mean of its divisors is an integer number (45533741379).

Almost surely, 2^121423310342 is an apocalyptic number.

121423310342 is a deficient number, since it is larger than the sum of its proper divisors (60711655174).

121423310342 is an equidigital number, since it uses as much as digits as its factorization.

121423310342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60711655173.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 121423310342 its reverse (243013324121), we get a palindrome (364436634463).

The spelling of 121423310342 in words is "one hundred twenty-one billion, four hundred twenty-three million, three hundred ten thousand, three hundred forty-two".