142120111012402 has 16 divisors (see below), whose sum is σ = 224407932874560. Its totient is φ = 67317725307312.

The previous prime is 142120111012381. The next prime is 142120111012457. The reversal of 142120111012402 is 204210111021241.

It is an unprimeable number.

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, 63532678 + ... + 65731585.

It is an arithmetic number, because the mean of its divisors is an integer number (14025495804660).

Almost surely, 2^{142120111012402} is an apocalyptic number.

142120111012402 is a deficient number, since it is larger than the sum of its proper divisors (82287821862158).

142120111012402 is a wasteful number, since it uses less digits than its factorization.

142120111012402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129293217.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 142120111012402 its reverse (204210111021241), we get a palindrome (346330222033643).

The spelling of 142120111012402 in words is "one hundred forty-two trillion, one hundred twenty billion, one hundred eleven million, twelve thousand, four hundred two".