1311045163530 has 16 divisors (see below), whose sum is σ = 3146508392544. Its totient is φ = 349612043600.

The previous prime is 1311045163523. The next prime is 1311045163531. The reversal of 1311045163530 is 353615401131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1311045163491 and 1311045163500.

It is not an unprimeable number, because it can be changed into a prime (1311045163531) 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, 21850752696 + ... + 21850752755.

It is an arithmetic number, because the mean of its divisors is an integer number (196656774534).

Almost surely, 2^{1311045163530} is an apocalyptic number.

1311045163530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311045163530 is an abundant number, since it is smaller than the sum of its proper divisors (1835463229014).

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

1311045163530 is a wasteful number, since it uses less digits than its factorization.

1311045163530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43701505461.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 1311045163530 in words is "one trillion, three hundred eleven billion, forty-five million, one hundred sixty-three thousand, five hundred thirty".