1212203202031 has 2 divisors, whose sum is σ = 1212203202032. Its totient is φ = 1212203202030.

The previous prime is 1212203202029. The next prime is 1212203202061. The reversal of 1212203202031 is 1302023022121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212203202031 - 2¹ = 1212203202029 is a prime.

It is a super-2 number, since 2×1212203202031² (a number of 25 digits) contains 22 as substring.

Together with 1212203202029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212203202061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606101601015 + 606101601016.

It is an arithmetic number, because the mean of its divisors is an integer number (606101601016).

Almost surely, 2^{1212203202031} is an apocalyptic number.

1212203202031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212203202031 is an equidigital number, since it uses as much as digits as its factorization.

1212203202031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1212203202031 its reverse (1302023022121), we get a palindrome (2514226224152).

The spelling of 1212203202031 in words is "one trillion, two hundred twelve billion, two hundred three million, two hundred two thousand, thirty-one".