142202011 has 4 divisors (see below), whose sum is σ = 162516592. Its totient is φ = 121887432.

The previous prime is 142201999. The next prime is 142202057. The reversal of 142202011 is 110202241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 142202011 - 2²¹ = 140104859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142201982 and 142202000.

It is not an unprimeable number, because it can be changed into a prime (142202111) 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, 10157280 + ... + 10157293.

It is an arithmetic number, because the mean of its divisors is an integer number (40629148).

Almost surely, 2^142202011 is an apocalyptic number.

142202011 is a deficient number, since it is larger than the sum of its proper divisors (20314581).

142202011 is an equidigital number, since it uses as much as digits as its factorization.

142202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20314580.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 142202011 is about 11924.8484686389. The cubic root of 142202011 is about 521.9576246533.

Adding to 142202011 its reverse (110202241), we get a palindrome (252404252).

The spelling of 142202011 in words is "one hundred forty-two million, two hundred two thousand, eleven".