142121132013 has 32 divisors (see below), whose sum is σ = 230306146560. Its totient is φ = 76101073920.

The previous prime is 142121131987. The next prime is 142121132051. The reversal of 142121132013 is 310231121241.

It is not a de Polignac number, because 142121132013 - 2¹⁷ = 142121000941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142121132063) 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, 787458 + ... + 950963.

It is an arithmetic number, because the mean of its divisors is an integer number (7197067080).

Almost surely, 2^142121132013 is an apocalyptic number.

It is an amenable number.

142121132013 is a deficient number, since it is larger than the sum of its proper divisors (88185014547).

142121132013 is a wasteful number, since it uses less digits than its factorization.

142121132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738677.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 142121132013 its reverse (310231121241), we get a palindrome (452352253254).

The spelling of 142121132013 in words is "one hundred forty-two billion, one hundred twenty-one million, one hundred thirty-two thousand, thirteen".