142102011 has 8 divisors (see below), whose sum is σ = 190087744. Its totient is φ = 94425480.

The previous prime is 142101989. The next prime is 142102013. The reversal of 142102011 is 110201241.

It is a happy number.

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

It is not a de Polignac number, because 142102011 - 2¹⁵ = 142069243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142102013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76225 + ... + 78066.

It is an arithmetic number, because the mean of its divisors is an integer number (23760968).

Almost surely, 2^142102011 is an apocalyptic number.

142102011 is a deficient number, since it is larger than the sum of its proper divisors (47985733).

142102011 is a wasteful number, since it uses less digits than its factorization.

142102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154601.

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

The square root of 142102011 is about 11920.6548058402. The cubic root of 142102011 is about 521.8352447563.

Adding to 142102011 its reverse (110201241), we get a palindrome (252303252).

The spelling of 142102011 in words is "one hundred forty-two million, one hundred two thousand, eleven".