143120251442 has 24 divisors (see below), whose sum is σ = 249745253760. Its totient is φ = 61333561800.

The previous prime is 143120251429. The next prime is 143120251453. The reversal of 143120251442 is 244152021341.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2150567 + ... + 2216117.

It is an arithmetic number, because the mean of its divisors is an integer number (10406052240).

Almost surely, 2^143120251442 is an apocalyptic number.

143120251442 is a deficient number, since it is larger than the sum of its proper divisors (106625002318).

143120251442 is a wasteful number, since it uses less digits than its factorization.

143120251442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87846 (or 87839 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 143120251442 its reverse (244152021341), we get a palindrome (387272272783).

The spelling of 143120251442 in words is "one hundred forty-three billion, one hundred twenty million, two hundred fifty-one thousand, four hundred forty-two".