1202131112011 has 4 divisors (see below), whose sum is σ = 1209506149672. Its totient is φ = 1194756074352.

The previous prime is 1202131111931. The next prime is 1202131112069. The reversal of 1202131112011 is 1102111312021.

It is a happy number.

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 1202131112011 - 2¹⁵ = 1202131079243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202131112081) 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, 3687518586 + ... + 3687518911.

It is an arithmetic number, because the mean of its divisors is an integer number (302376537418).

Almost surely, 2^{1202131112011} is an apocalyptic number.

1202131112011 is a deficient number, since it is larger than the sum of its proper divisors (7375037661).

1202131112011 is an equidigital number, since it uses as much as digits as its factorization.

1202131112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375037660.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1202131112011 its reverse (1102111312021), we get a palindrome (2304242424032).

The spelling of 1202131112011 in words is "one trillion, two hundred two billion, one hundred thirty-one million, one hundred twelve thousand, eleven".