1232203212131 has 4 divisors (see below), whose sum is σ = 1232206200264. Its totient is φ = 1232200224000.

The previous prime is 1232203212127. The next prime is 1232203212151. The reversal of 1232203212131 is 1312123022321.

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 1232203212131 - 2² = 1232203212127 is a prime.

It is a super-2 number, since 2×1232203212131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232203212097 and 1232203212106.

It is not an unprimeable number, because it can be changed into a prime (1232203212101) 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, 752990 + ... + 1741091.

It is an arithmetic number, because the mean of its divisors is an integer number (308051550066).

Almost surely, 2^{1232203212131} is an apocalyptic number.

1232203212131 is a deficient number, since it is larger than the sum of its proper divisors (2988133).

1232203212131 is an equidigital number, since it uses as much as digits as its factorization.

1232203212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988132.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1232203212131 its reverse (1312123022321), we get a palindrome (2544326234452).

The spelling of 1232203212131 in words is "one trillion, two hundred thirty-two billion, two hundred three million, two hundred twelve thousand, one hundred thirty-one".