1212232030231 has 4 divisors (see below), whose sum is σ = 1212382048464. Its totient is φ = 1212082012000.

The previous prime is 1212232030199. The next prime is 1212232030237. The reversal of 1212232030231 is 1320302322121.

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 1212232030231 - 2⁵ = 1212232030199 is a prime.

It is a super-2 number, since 2×1212232030231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212232030237) 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, 74996995 + ... + 75013156.

It is an arithmetic number, because the mean of its divisors is an integer number (303095512116).

Almost surely, 2^{1212232030231} is an apocalyptic number.

1212232030231 is a deficient number, since it is larger than the sum of its proper divisors (150018233).

1212232030231 is an equidigital number, since it uses as much as digits as its factorization.

1212232030231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150018232.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1212232030231 its reverse (1320302322121), we get a palindrome (2532534352352).

The spelling of 1212232030231 in words is "one trillion, two hundred twelve billion, two hundred thirty-two million, thirty thousand, two hundred thirty-one".