10121142 has 8 divisors (see below), whose sum is σ = 20242296. Its totient is φ = 3373712.

The previous prime is 10121131. The next prime is 10121143. The reversal of 10121142 is 24112101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

10121142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843423 + ... + 843434.

It is an arithmetic number, because the mean of its divisors is an integer number (2530287).

Almost surely, 2^10121142 is an apocalyptic number.

10121142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10121142 is a wasteful number, since it uses less digits than its factorization.

10121142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686862.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 10121142 is about 3181.3742313661. The cubic root of 10121142 is about 216.3099545302.

Adding to 10121142 its reverse (24112101), we get a palindrome (34233243).

The spelling of 10121142 in words is "ten million, one hundred twenty-one thousand, one hundred forty-two".