402011003 has 2 divisors, whose sum is σ = 402011004. Its totient is φ = 402011002.

The previous prime is 402010993. The next prime is 402011009. The reversal of 402011003 is 300110204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402011003 - 2¹² = 402006907 is a prime.

It is a super-2 number, since 2×402011003² = 323225693066132018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402011009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201005501 + 201005502.

It is an arithmetic number, because the mean of its divisors is an integer number (201005502).

Almost surely, 2^402011003 is an apocalyptic number.

402011003 is a deficient number, since it is larger than the sum of its proper divisors (1).

402011003 is an equidigital number, since it uses as much as digits as its factorization.

402011003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 402011003 is about 20050.2120437665. The cubic root of 402011003 is about 738.0390026219.

Adding to 402011003 its reverse (300110204), we get a palindrome (702121207).

The spelling of 402011003 in words is "four hundred two million, eleven thousand, three".