142121111200134 has 16 divisors (see below), whose sum is σ = 310082424436800. Its totient is φ = 43067003393960.

The previous prime is 142121111200097. The next prime is 142121111200139. The reversal of 142121111200134 is 431002111121241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142121111200139) 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, 1076675084784 + ... + 1076675084915.

It is an arithmetic number, because the mean of its divisors is an integer number (19380151527300).

Almost surely, 2^{142121111200134} is an apocalyptic number.

142121111200134 is an abundant number, since it is smaller than the sum of its proper divisors (167961313236666).

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

142121111200134 is a wasteful number, since it uses less digits than its factorization.

142121111200134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153350169715.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 142121111200134 its reverse (431002111121241), we get a palindrome (573123222321375).

The spelling of 142121111200134 in words is "one hundred forty-two trillion, one hundred twenty-one billion, one hundred eleven million, two hundred thousand, one hundred thirty-four".