121664252342 has 8 divisors (see below), whose sum is σ = 193231459656. Its totient is φ = 57253765792.

The previous prime is 121664252329. The next prime is 121664252441. The reversal of 121664252342 is 243252466121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121664252296 and 121664252305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1789180148 + ... + 1789180215.

It is an arithmetic number, because the mean of its divisors is an integer number (24153932457).

Almost surely, 2^121664252342 is an apocalyptic number.

121664252342 is a deficient number, since it is larger than the sum of its proper divisors (71567207314).

121664252342 is a wasteful number, since it uses less digits than its factorization.

121664252342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578360382.

The product of its digits is 138240, while the sum is 38.

The spelling of 121664252342 in words is "one hundred twenty-one billion, six hundred sixty-four million, two hundred fifty-two thousand, three hundred forty-two".