201111412042 has 16 divisors (see below), whose sum is σ = 302572614600. Its totient is φ = 100253970432.

The previous prime is 201111412027. The next prime is 201111412057. The reversal of 201111412042 is 240214111102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201111412027) and next prime (201111412057).

It can be written as a sum of positive squares in 4 ways, for example, as 166544793801 + 34566618241 = 408099^2 + 185921^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4885498 + ... + 4926490.

Almost surely, 2^201111412042 is an apocalyptic number.

201111412042 is a deficient number, since it is larger than the sum of its proper divisors (101461202558).

201111412042 is a wasteful number, since it uses less digits than its factorization.

201111412042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48297.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201111412042 its reverse (240214111102), we get a palindrome (441325523144).

The spelling of 201111412042 in words is "two hundred one billion, one hundred eleven million, four hundred twelve thousand, forty-two".