1521313032342 has 16 divisors (see below), whose sum is σ = 3053453918832. Its totient is φ = 505299701760.

The previous prime is 1521313032341. The next prime is 1521313032383. The reversal of 1521313032342 is 2432303131251.

It is a super-2 number, since 2×1521313032342² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521313032341) 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, 451158763 + ... + 451162134.

It is an arithmetic number, because the mean of its divisors is an integer number (190840869927).

Almost surely, 2^{1521313032342} is an apocalyptic number.

1521313032342 is an abundant number, since it is smaller than the sum of its proper divisors (1532140886490).

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

1521313032342 is a wasteful number, since it uses less digits than its factorization.

1521313032342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902321183.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 1521313032342 its reverse (2432303131251), we get a palindrome (3953616163593).

The spelling of 1521313032342 in words is "one trillion, five hundred twenty-one billion, three hundred thirteen million, thirty-two thousand, three hundred forty-two".