1331525521403 has 32 divisors (see below), whose sum is σ = 1672874311680. Its totient is φ = 1029585836160.

The previous prime is 1331525521397. The next prime is 1331525521427. The reversal of 1331525521403 is 3041255251331.

It is a happy number.

It is not a de Polignac number, because 1331525521403 - 2⁴ = 1331525521387 is a prime.

It is a super-2 number, since 2×1331525521403² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331525521433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5695133 + ... + 5924321.

It is an arithmetic number, because the mean of its divisors is an integer number (52277322240).

Almost surely, 2^{1331525521403} is an apocalyptic number.

1331525521403 is a deficient number, since it is larger than the sum of its proper divisors (341348790277).

1331525521403 is a wasteful number, since it uses less digits than its factorization.

1331525521403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229787.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 1331525521403 in words is "one trillion, three hundred thirty-one billion, five hundred twenty-five million, five hundred twenty-one thousand, four hundred three".