120102440142 has 16 divisors (see below), whose sum is σ = 242681220432. Its totient is φ = 39621423360.

The previous prime is 120102440131. The next prime is 120102440147. The reversal of 120102440142 is 241044201021.

It is a super-2 number, since 2×120102440142² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102440147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103180209 + ... + 103181372.

It is an arithmetic number, because the mean of its divisors is an integer number (15167576277).

Almost surely, 2^120102440142 is an apocalyptic number.

120102440142 is an abundant number, since it is smaller than the sum of its proper divisors (122578780290).

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

120102440142 is a wasteful number, since it uses less digits than its factorization.

120102440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206361683.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 120102440142 its reverse (241044201021), we get a palindrome (361146641163).

The spelling of 120102440142 in words is "one hundred twenty billion, one hundred two million, four hundred forty thousand, one hundred forty-two".