201011320142 has 4 divisors (see below), whose sum is σ = 301516980216. Its totient is φ = 100505660070.

The previous prime is 201011320051. The next prime is 201011320259. The reversal of 201011320142 is 241023110102.

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

It is a super-2 number, since 2×201011320142² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201011320142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50252830034 + ... + 50252830037.

It is an arithmetic number, because the mean of its divisors is an integer number (75379245054).

Almost surely, 2^201011320142 is an apocalyptic number.

201011320142 is a deficient number, since it is larger than the sum of its proper divisors (100505660074).

201011320142 is a wasteful number, since it uses less digits than its factorization.

201011320142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100505660073.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 201011320142 its reverse (241023110102), we get a palindrome (442034430244).

The spelling of 201011320142 in words is "two hundred one billion, eleven million, three hundred twenty thousand, one hundred forty-two".