1311001530 has 16 divisors (see below), whose sum is σ = 3146403744. Its totient is φ = 349600400.

The previous prime is 1311001507. The next prime is 1311001589. The reversal of 1311001530 is 351001131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21849996 + ... + 21850055.

It is an arithmetic number, because the mean of its divisors is an integer number (196650234).

Almost surely, 2^1311001530 is an apocalyptic number.

1311001530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311001530 is an abundant number, since it is smaller than the sum of its proper divisors (1835402214).

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

1311001530 is a wasteful number, since it uses less digits than its factorization.

1311001530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43700061.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 1311001530 is about 36207.7551085399. The cubic root of 1311001530 is about 1094.4629546792.

Adding to 1311001530 its reverse (351001131), we get a palindrome (1662002661).

The spelling of 1311001530 in words is "one billion, three hundred eleven million, one thousand, five hundred thirty".