1265133245310 has 48 divisors (see below), whose sum is σ = 3588377934960. Its totient is φ = 306698968320.

The previous prime is 1265133245291. The next prime is 1265133245329. The reversal of 1265133245310 is 135423315621.

1265133245310 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 1 + 332 + 4 + 5 + 310 = 666.

It is an interprime number because it is at equal distance from previous prime (1265133245291) and next prime (1265133245329).

It is a super-2 number, since 2×1265133245310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 638955195 + ... + 638957174.

It is an arithmetic number, because the mean of its divisors is an integer number (74757873645).

Almost surely, 2^{1265133245310} is an apocalyptic number.

1265133245310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1265133245310 is an abundant number, since it is smaller than the sum of its proper divisors (2323244689650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265133245310 is a wasteful number, since it uses less digits than its factorization.

1265133245310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277912393 (or 1277912390 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 1265133245310 in words is "one trillion, two hundred sixty-five billion, one hundred thirty-three million, two hundred forty-five thousand, three hundred ten".