1131211202001 has 16 divisors (see below), whose sum is σ = 1520203270464. Its totient is φ = 748186578944.

The previous prime is 1131211201969. The next prime is 1131211202003. The reversal of 1131211202001 is 1002021121311.

It is a cyclic number.

It is not a de Polignac number, because 1131211202001 - 2⁵ = 1131211201969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131211202003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140400 + ... + 1510673.

It is an arithmetic number, because the mean of its divisors is an integer number (95012704404).

Almost surely, 2^{1131211202001} is an apocalyptic number.

It is an amenable number.

1131211202001 is a deficient number, since it is larger than the sum of its proper divisors (388992068463).

1131211202001 is a wasteful number, since it uses less digits than its factorization.

1131211202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652880.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1131211202001 its reverse (1002021121311), we get a palindrome (2133232323312).

The spelling of 1131211202001 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, two hundred two thousand, one".