1320125263 has 8 divisors (see below), whose sum is σ = 1390158320. Its totient is φ = 1250147520.

The previous prime is 1320125251. The next prime is 1320125267. The reversal of 1320125263 is 3625210231.

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

It is a cyclic number.

It is not a de Polignac number, because 1320125263 - 2²¹ = 1318028111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320125267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40723 + ... + 65563.

It is an arithmetic number, because the mean of its divisors is an integer number (173769790).

Almost surely, 2^1320125263 is an apocalyptic number.

1320125263 is a deficient number, since it is larger than the sum of its proper divisors (70033057).

1320125263 is a wasteful number, since it uses less digits than its factorization.

1320125263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27657.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1320125263 is about 36333.5280835759. The cubic root of 1320125263 is about 1096.9960085467.

Adding to 1320125263 its reverse (3625210231), we get a palindrome (4945335494).

The spelling of 1320125263 in words is "one billion, three hundred twenty million, one hundred twenty-five thousand, two hundred sixty-three".