120401515142 has 32 divisors (see below), whose sum is σ = 183000314880. Its totient is φ = 59406721920.

The previous prime is 120401515057. The next prime is 120401515187. The reversal of 120401515142 is 241515104021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78030023 + ... + 78031565.

It is an arithmetic number, because the mean of its divisors is an integer number (5718759840).

Almost surely, 2^120401515142 is an apocalyptic number.

120401515142 is a deficient number, since it is larger than the sum of its proper divisors (62598799738).

120401515142 is a wasteful number, since it uses less digits than its factorization.

120401515142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 120401515142 its reverse (241515104021), we get a palindrome (361916619163).

The spelling of 120401515142 in words is "one hundred twenty billion, four hundred one million, five hundred fifteen thousand, one hundred forty-two".