1103031102121 has 16 divisors (see below), whose sum is σ = 1213120072080. Its totient is φ = 996774451200.

The previous prime is 1103031102083. The next prime is 1103031102233. The reversal of 1103031102121 is 1212011303011.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 125078224896 + 977952877225 = 353664^2 + 988915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103031102121 - 2¹³ = 1103031093929 is a prime.

It is a super-2 number, since 2×1103031102121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103031102095 and 1103031102104.

It is not an unprimeable number, because it can be changed into a prime (1103031102521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4602720 + ... + 4836433.

It is an arithmetic number, because the mean of its divisors is an integer number (75820004505).

Almost surely, 2^{1103031102121} is an apocalyptic number.

It is an amenable number.

1103031102121 is a deficient number, since it is larger than the sum of its proper divisors (110088969959).

1103031102121 is a wasteful number, since it uses less digits than its factorization.

1103031102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9439356.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1103031102121 its reverse (1212011303011), we get a palindrome (2315042405132).

The spelling of 1103031102121 in words is "one trillion, one hundred three billion, thirty-one million, one hundred two thousand, one hundred twenty-one".