1011211212103 has 8 divisors (see below), whose sum is σ = 1015024009680. Its totient is φ = 1007403579840.

The previous prime is 1011211212091. The next prime is 1011211212119. The reversal of 1011211212103 is 3012121121101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011211212103 - 2⁵ = 1011211212071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011211212203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898828 + ... + 1682353.

It is an arithmetic number, because the mean of its divisors is an integer number (126878001210).

Almost surely, 2^{1011211212103} is an apocalyptic number.

1011211212103 is a deficient number, since it is larger than the sum of its proper divisors (3812797577).

1011211212103 is a wasteful number, since it uses less digits than its factorization.

1011211212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582657.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1011211212103 its reverse (3012121121101), we get a palindrome (4023332333204).

The spelling of 1011211212103 in words is "one trillion, eleven billion, two hundred eleven million, two hundred twelve thousand, one hundred three".