1011211010003 has 2 divisors, whose sum is σ = 1011211010004. Its totient is φ = 1011211010002.

The previous prime is 1011211009997. The next prime is 1011211010021. The reversal of 1011211010003 is 3000101121101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011211010003 - 2¹⁴ = 1011210993619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011211010903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505605505001 + 505605505002.

It is an arithmetic number, because the mean of its divisors is an integer number (505605505002).

Almost surely, 2^{1011211010003} is an apocalyptic number.

1011211010003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011211010003 is an equidigital number, since it uses as much as digits as its factorization.

1011211010003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 1011211010003 its reverse (3000101121101), we get a palindrome (4011312131104).

The spelling of 1011211010003 in words is "one trillion, eleven billion, two hundred eleven million, ten thousand, three".