1331300233531 has 16 divisors (see below), whose sum is σ = 1428635164608. Its totient is φ = 1236167296000.

The previous prime is 1331300233391. The next prime is 1331300233547. The reversal of 1331300233531 is 1353320031331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1331300233531 - 2²¹ = 1331298136379 is a prime.

It is a super-2 number, since 2×1331300233531² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1331300233531.

It is not an unprimeable number, because it can be changed into a prime (1331300231531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897175 + ... + 1862128.

It is an arithmetic number, because the mean of its divisors is an integer number (89289697788).

Almost surely, 2^{1331300233531} is an apocalyptic number.

1331300233531 is a deficient number, since it is larger than the sum of its proper divisors (97334931077).

1331300233531 is a wasteful number, since it uses less digits than its factorization.

1331300233531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759702.

The product of its (nonzero) digits is 7290, while the sum is 28.

Adding to 1331300233531 its reverse (1353320031331), we get a palindrome (2684620264862).

The spelling of 1331300233531 in words is "one trillion, three hundred thirty-one billion, three hundred million, two hundred thirty-three thousand, five hundred thirty-one".