1103121203031 has 16 divisors (see below), whose sum is σ = 1634386168800. Its totient is φ = 735354494784.

The previous prime is 1103121203011. The next prime is 1103121203099. The reversal of 1103121203031 is 1303021213011.

It is not a de Polignac number, because 1103121203031 - 2¹¹ = 1103121200983 is a prime.

It is a super-2 number, since 2×1103121203031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1103121202995 and 1103121203013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103121203011) 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, 1316316 + ... + 1984673.

It is an arithmetic number, because the mean of its divisors is an integer number (102149135550).

Almost surely, 2^{1103121203031} is an apocalyptic number.

1103121203031 is a deficient number, since it is larger than the sum of its proper divisors (531264965769).

1103121203031 is a wasteful number, since it uses less digits than its factorization.

1103121203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313375 (or 3313369 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1103121203031 its reverse (1303021213011), we get a palindrome (2406142416042).

The spelling of 1103121203031 in words is "one trillion, one hundred three billion, one hundred twenty-one million, two hundred three thousand, thirty-one".