1201111434 has 12 divisors (see below), whose sum is σ = 2602408146. Its totient is φ = 400370472.

The previous prime is 1201111409. The next prime is 1201111447. The reversal of 1201111434 is 4341111021.

1201111434 is a `hidden beast` number, since 120 + 1 + 111 + 434 = 666.

It can be written as a sum of positive squares in only one way, i.e., 734681025 + 466430409 = 27105^2 + 21597^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 66728413 = 1201111434 / (1 + 2 + 0 + 1 + 1 + 1 + 1 + 4 + 3 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33364189 + ... + 33364224.

Almost surely, 2^1201111434 is an apocalyptic number.

1201111434 is an abundant number, since it is smaller than the sum of its proper divisors (1401296712).

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

1201111434 is a wasteful number, since it uses less digits than its factorization.

1201111434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66728421 (or 66728418 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1201111434 is about 34657.0546065300. The cubic root of 1201111434 is about 1062.9865442983.

Adding to 1201111434 its reverse (4341111021), we get a palindrome (5542222455).

The spelling of 1201111434 in words is "one billion, two hundred one million, one hundred eleven thousand, four hundred thirty-four".