121425442315 has 16 divisors (see below), whose sum is σ = 146879631360. Its totient is φ = 96361181280.

The previous prime is 121425442301. The next prime is 121425442379. The reversal of 121425442315 is 513244524121.

It is not a de Polignac number, because 121425442315 - 2⁵ = 121425442283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7013820 + ... + 7031110.

It is an arithmetic number, because the mean of its divisors is an integer number (9179976960).

Almost surely, 2^121425442315 is an apocalyptic number.

121425442315 is a deficient number, since it is larger than the sum of its proper divisors (25454189045).

121425442315 is a wasteful number, since it uses less digits than its factorization.

121425442315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28482.

The product of its digits is 38400, while the sum is 34.

Adding to 121425442315 its reverse (513244524121), we get a palindrome (634669966436).

The spelling of 121425442315 in words is "one hundred twenty-one billion, four hundred twenty-five million, four hundred forty-two thousand, three hundred fifteen".