10142121004 has 12 divisors (see below), whose sum is σ = 18049537800. Its totient is φ = 4985110208.

The previous prime is 10142120999. The next prime is 10142121089. The reversal of 10142121004 is 40012124101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21487309 + ... + 21487780.

It is an arithmetic number, because the mean of its divisors is an integer number (1504128150).

Almost surely, 2^10142121004 is an apocalyptic number.

It is an amenable number.

10142121004 is a deficient number, since it is larger than the sum of its proper divisors (7907416796).

10142121004 is a wasteful number, since it uses less digits than its factorization.

10142121004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42975152 (or 42975150 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10142121004 its reverse (40012124101), we get a palindrome (50154245105).

The spelling of 10142121004 in words is "ten billion, one hundred forty-two million, one hundred twenty-one thousand, four".