1213708403 has 2 divisors, whose sum is σ = 1213708404. Its totient is φ = 1213708402.

The previous prime is 1213708339. The next prime is 1213708423. The reversal of 1213708403 is 3048073121.

It is a strong prime.

It is an emirp because it is prime and its reverse (3048073121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213708403 - 2⁶ = 1213708339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213708423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606854201 + 606854202.

It is an arithmetic number, because the mean of its divisors is an integer number (606854202).

Almost surely, 2^1213708403 is an apocalyptic number.

1213708403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213708403 is an equidigital number, since it uses as much as digits as its factorization.

1213708403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1213708403 is about 34838.3180277120. The cubic root of 1213708403 is about 1066.6897443032.

The spelling of 1213708403 in words is "one billion, two hundred thirteen million, seven hundred eight thousand, four hundred three".