1131211100201 has 16 divisors (see below), whose sum is σ = 1392290860800. Its totient is φ = 895004209728.

The previous prime is 1131211100189. The next prime is 1131211100233. The reversal of 1131211100201 is 1020011121311.

It is a cyclic number.

It is not a de Polignac number, because 1131211100201 - 2¹⁰ = 1131211099177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131211100101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5010020 + ... + 5230938.

It is an arithmetic number, because the mean of its divisors is an integer number (87018178800).

Almost surely, 2^{1131211100201} is an apocalyptic number.

It is an amenable number.

1131211100201 is a deficient number, since it is larger than the sum of its proper divisors (261079760599).

1131211100201 is a wasteful number, since it uses less digits than its factorization.

1131211100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277208.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1131211100201 its reverse (1020011121311), we get a palindrome (2151222221512).

The spelling of 1131211100201 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, one hundred thousand, two hundred one".