142121431204 has 24 divisors (see below), whose sum is σ = 250326084960. Its totient is φ = 70600404864.

The previous prime is 142121431189. The next prime is 142121431237. The reversal of 142121431204 is 402134121241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715692 + ... + 892444.

It is an arithmetic number, because the mean of its divisors is an integer number (10430253540).

Almost surely, 2^142121431204 is an apocalyptic number.

It is an amenable number.

142121431204 is a deficient number, since it is larger than the sum of its proper divisors (108204653756).

142121431204 is a wasteful number, since it uses less digits than its factorization.

142121431204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178059 (or 178057 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 142121431204 its reverse (402134121241), we get a palindrome (544255552445).

The spelling of 142121431204 in words is "one hundred forty-two billion, one hundred twenty-one million, four hundred thirty-one thousand, two hundred four".