1232251242545 has 24 divisors (see below), whose sum is σ = 1560744545256. Its totient is φ = 933844603392.

The previous prime is 1232251242533. The next prime is 1232251242557. The reversal of 1232251242545 is 5452421522321.

It is an interprime number because it is at equal distance from previous prime (1232251242533) and next prime (1232251242557).

It can be written as a sum of positive squares in 4 ways, for example, as 219120418609 + 1013130823936 = 468103^2 + 1006544^2 .

It is not a de Polignac number, because 1232251242545 - 2²⁰ = 1232250193969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1232251242499 and 1232251242508.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41234729 + ... + 41264601.

It is an arithmetic number, because the mean of its divisors is an integer number (65031022719).

Almost surely, 2^{1232251242545} is an apocalyptic number.

It is an amenable number.

1232251242545 is a deficient number, since it is larger than the sum of its proper divisors (328493302711).

1232251242545 is a wasteful number, since it uses less digits than its factorization.

1232251242545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52769 (or 52750 counting only the distinct ones).

The product of its digits is 192000, while the sum is 38.

Adding to 1232251242545 its reverse (5452421522321), we get a palindrome (6684672764866).

The spelling of 1232251242545 in words is "one trillion, two hundred thirty-two billion, two hundred fifty-one million, two hundred forty-two thousand, five hundred forty-five".