1202132111111 has 4 divisors (see below), whose sum is σ = 1202488724424. Its totient is φ = 1201775497800.

The previous prime is 1202132111087. The next prime is 1202132111119. The reversal of 1202132111111 is 1111112312021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202132111111 - 2²⁶ = 1202065002247 is a prime.

It is a super-2 number, since 2×1202132111111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202132111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202132111119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178301600 + ... + 178308341.

It is an arithmetic number, because the mean of its divisors is an integer number (300622181106).

Almost surely, 2^{1202132111111} is an apocalyptic number.

1202132111111 is a deficient number, since it is larger than the sum of its proper divisors (356613313).

1202132111111 is an equidigital number, since it uses as much as digits as its factorization.

1202132111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356613312.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 1202132111111 its reverse (1111112312021), we get a palindrome (2313244423132).

The spelling of 1202132111111 in words is "one trillion, two hundred two billion, one hundred thirty-two million, one hundred eleven thousand, one hundred eleven".