1011210121103 has 12 divisors (see below), whose sum is σ = 1266790701960. Its totient is φ = 800078337072.

The previous prime is 1011210121081. The next prime is 1011210121133. The reversal of 1011210121103 is 3011210121101.

It is not a de Polignac number, because 1011210121103 - 2¹⁸ = 1011209858959 is a prime.

It is a super-2 number, since 2×1011210121103² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011210121133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 793727873 + ... + 793729146.

It is an arithmetic number, because the mean of its divisors is an integer number (105565891830).

Almost surely, 2^{1011210121103} is an apocalyptic number.

1011210121103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011210121103 is a deficient number, since it is larger than the sum of its proper divisors (255580580857).

1011210121103 is a wasteful number, since it uses less digits than its factorization.

1011210121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587457046 (or 1587457039 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1011210121103 its reverse (3011210121101), we get a palindrome (4022420242204).

The spelling of 1011210121103 in words is "one trillion, eleven billion, two hundred ten million, one hundred twenty-one thousand, one hundred three".