1212103751503 has 2 divisors, whose sum is σ = 1212103751504. Its totient is φ = 1212103751502.

The previous prime is 1212103751489. The next prime is 1212103751513. The reversal of 1212103751503 is 3051573012121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212103751503 - 2⁵ = 1212103751471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212103751513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606051875751 + 606051875752.

It is an arithmetic number, because the mean of its divisors is an integer number (606051875752).

Almost surely, 2^{1212103751503} is an apocalyptic number.

1212103751503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212103751503 is an equidigital number, since it uses as much as digits as its factorization.

1212103751503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

Adding to 1212103751503 its reverse (3051573012121), we get a palindrome (4263676763624).

The spelling of 1212103751503 in words is "one trillion, two hundred twelve billion, one hundred three million, seven hundred fifty-one thousand, five hundred three".