1226402003 has 2 divisors, whose sum is σ = 1226402004. Its totient is φ = 1226402002.

The previous prime is 1226401999. The next prime is 1226402029. The reversal of 1226402003 is 3002046221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226402003 - 2² = 1226401999 is a prime.

It is not a weakly prime, because it can be changed into another prime (1226402053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613201001 + 613201002.

It is an arithmetic number, because the mean of its divisors is an integer number (613201002).

Almost surely, 2^1226402003 is an apocalyptic number.

1226402003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226402003 is an equidigital number, since it uses as much as digits as its factorization.

1226402003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1226402003 is about 35020.0228869143. The cubic root of 1226402003 is about 1070.3955223956.

Adding to 1226402003 its reverse (3002046221), we get a palindrome (4228448224).

The spelling of 1226402003 in words is "one billion, two hundred twenty-six million, four hundred two thousand, three".