1423121175625 has 40 divisors (see below), whose sum is σ = 1807626174464. Its totient is φ = 1119828240000.

The previous prime is 1423121175589. The next prime is 1423121175631. The reversal of 1423121175625 is 5265711213241.

It is a happy number.

It is not a de Polignac number, because 1423121175625 - 2²³ = 1423112787017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16701880 + ... + 16786870.

Almost surely, 2^{1423121175625} is an apocalyptic number.

It is an amenable number.

1423121175625 is a deficient number, since it is larger than the sum of its proper divisors (384504998839).

1423121175625 is an frugal number, since it uses more digits than its factorization.

1423121175625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85451 (or 85436 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

Adding to 1423121175625 its reverse (5265711213241), we get a palindrome (6688832388866).

The spelling of 1423121175625 in words is "one trillion, four hundred twenty-three billion, one hundred twenty-one million, one hundred seventy-five thousand, six hundred twenty-five".