1311420440325 has 48 divisors (see below), whose sum is σ = 2231034347520. Its totient is φ = 679341727680.

The previous prime is 1311420440311. The next prime is 1311420440347. The reversal of 1311420440325 is 5230440241131.

It is not a de Polignac number, because 1311420440325 - 2¹² = 1311420436229 is a prime.

It is a super-2 number, since 2×1311420440325² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311420440292 and 1311420440301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 558597 + ... + 1713146.

It is an arithmetic number, because the mean of its divisors is an integer number (46479882240).

Almost surely, 2^{1311420440325} is an apocalyptic number.

1311420440325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311420440325 is a deficient number, since it is larger than the sum of its proper divisors (919613907195).

1311420440325 is a wasteful number, since it uses less digits than its factorization.

1311420440325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271978 (or 2271973 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1311420440325 its reverse (5230440241131), we get a palindrome (6541860681456).

The spelling of 1311420440325 in words is "one trillion, three hundred eleven billion, four hundred twenty million, four hundred forty thousand, three hundred twenty-five".