121340422354 has 4 divisors (see below), whose sum is σ = 182010633534. Its totient is φ = 60670211176.

The previous prime is 121340422349. The next prime is 121340422367. The reversal of 121340422354 is 453224043121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453224043121 = 467 ⋅970501163.

It can be written as a sum of positive squares in only one way, i.e., 98561463025 + 22778959329 = 313945^2 + 150927^2 .

It is a super-3 number, since 3×121340422354³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30335105587 + ... + 30335105590.

Almost surely, 2^121340422354 is an apocalyptic number.

121340422354 is a deficient number, since it is larger than the sum of its proper divisors (60670211180).

121340422354 is an equidigital number, since it uses as much as digits as its factorization.

121340422354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60670211179.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 121340422354 its reverse (453224043121), we get a palindrome (574564465475).

The spelling of 121340422354 in words is "one hundred twenty-one billion, three hundred forty million, four hundred twenty-two thousand, three hundred fifty-four".