142113001521 has 64 divisors (see below), whose sum is σ = 207387705600. Its totient is φ = 86251392000.

The previous prime is 142113001517. The next prime is 142113001543. The reversal of 142113001521 is 125100311241.

It is not a de Polignac number, because 142113001521 - 2² = 142113001517 is a prime.

It is a super-2 number, since 2×142113001521² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142113001621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151022911 + ... + 151023851.

It is an arithmetic number, because the mean of its divisors is an integer number (3240432900).

Almost surely, 2^142113001521 is an apocalyptic number.

It is an amenable number.

142113001521 is a deficient number, since it is larger than the sum of its proper divisors (65274704079).

142113001521 is a wasteful number, since it uses less digits than its factorization.

142113001521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 142113001521 its reverse (125100311241), we get a palindrome (267213312762).

The spelling of 142113001521 in words is "one hundred forty-two billion, one hundred thirteen million, one thousand, five hundred twenty-one".