1201111011130 has 16 divisors (see below), whose sum is σ = 2289176280360. Its totient is φ = 452182968832.

The previous prime is 1201111011049. The next prime is 1201111011131. The reversal of 1201111011130 is 311101111021.

It can be written as a sum of positive squares in 4 ways, for example, as 738195427489 + 462915583641 = 859183^2 + 680379^2 .

It is a super-2 number, since 2×1201111011130² (a number of 25 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 1201111011130.

It is not an unprimeable number, because it can be changed into a prime (1201111011131) 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, 3532679275 + ... + 3532679614.

Almost surely, 2^{1201111011130} is an apocalyptic number.

1201111011130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201111011130 is a deficient number, since it is larger than the sum of its proper divisors (1088065269230).

1201111011130 is a wasteful number, since it uses less digits than its factorization.

1201111011130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7065358913.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 1201111011130 its reverse (311101111021), we get a palindrome (1512212122151).

The spelling of 1201111011130 in words is "one trillion, two hundred one billion, one hundred eleven million, eleven thousand, one hundred thirty".