1331425511 has 8 divisors (see below), whose sum is σ = 1435237440. Its totient is φ = 1227812832.

The previous prime is 1331425477. The next prime is 1331425519. The reversal of 1331425511 is 1155241331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1331425511 - 2¹⁴ = 1331409127 is a prime.

It is a super-2 number, since 2×1331425511² = 3545387782683222242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331425519) 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, 35780 + ... + 62793.

It is an arithmetic number, because the mean of its divisors is an integer number (179404680).

Almost surely, 2^1331425511 is an apocalyptic number.

1331425511 is a deficient number, since it is larger than the sum of its proper divisors (103811929).

1331425511 is a wasteful number, since it uses less digits than its factorization.

1331425511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99625.

The product of its digits is 1800, while the sum is 26.

The square root of 1331425511 is about 36488.7038821606. The cubic root of 1331425511 is about 1100.1172081718.

Adding to 1331425511 its reverse (1155241331), we get a palindrome (2486666842).

The spelling of 1331425511 in words is "one billion, three hundred thirty-one million, four hundred twenty-five thousand, five hundred eleven".