10042120142402 has 4 divisors (see below), whose sum is σ = 15063180213606. Its totient is φ = 5021060071200.

The previous prime is 10042120142393. The next prime is 10042120142449. The reversal of 10042120142402 is 20424102124001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7819399949761 + 2222720192641 = 2796319^2 + 1490879^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510530035599 + ... + 2510530035602.

Almost surely, 2^{10042120142402} is an apocalyptic number.

10042120142402 is a deficient number, since it is larger than the sum of its proper divisors (5021060071204).

10042120142402 is an equidigital number, since it uses as much as digits as its factorization.

10042120142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021060071203.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 10042120142402 its reverse (20424102124001), we get a palindrome (30466222266403).

The spelling of 10042120142402 in words is "ten trillion, forty-two billion, one hundred twenty million, one hundred forty-two thousand, four hundred two".