121453425146 has 16 divisors (see below), whose sum is σ = 200106331200. Its totient is φ = 55029240288.

The previous prime is 121453425139. The next prime is 121453425151. The reversal of 121453425146 is 641524354121.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69480491 + ... + 69482238.

It is an arithmetic number, because the mean of its divisors is an integer number (12506645700).

Almost surely, 2^121453425146 is an apocalyptic number.

121453425146 is a deficient number, since it is larger than the sum of its proper divisors (78652906054).

121453425146 is a wasteful number, since it uses less digits than its factorization.

121453425146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138962773.

The product of its digits is 115200, while the sum is 38.

Adding to 121453425146 its reverse (641524354121), we get a palindrome (762977779267).

The spelling of 121453425146 in words is "one hundred twenty-one billion, four hundred fifty-three million, four hundred twenty-five thousand, one hundred forty-six".