1242211003 has 32 divisors (see below), whose sum is σ = 1408942080. Its totient is φ = 1085736960.

The previous prime is 1242210971. The next prime is 1242211039. The reversal of 1242211003 is 3001122421.

It is not a de Polignac number, because 1242211003 - 2⁵ = 1242210971 is a prime.

It is a super-3 number, since 3×1242211003³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242211703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9781126 + ... + 9781252.

It is an arithmetic number, because the mean of its divisors is an integer number (44029440).

Almost surely, 2^1242211003 is an apocalyptic number.

1242211003 is a deficient number, since it is larger than the sum of its proper divisors (166731077).

1242211003 is a wasteful number, since it uses less digits than its factorization.

1242211003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1242211003 is about 35245.0138743057. The cubic root of 1242211003 is about 1074.9752301486.

Adding to 1242211003 its reverse (3001122421), we get a palindrome (4243333424).

The spelling of 1242211003 in words is "one billion, two hundred forty-two million, two hundred eleven thousand, three".