1101103020031 has 4 divisors (see below), whose sum is σ = 1258403451472. Its totient is φ = 943802588592.

The previous prime is 1101103020023. The next prime is 1101103020037. The reversal of 1101103020031 is 1300203011011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101103020031 - 2³ = 1101103020023 is a prime.

It is a super-2 number, since 2×1101103020031² (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 = 1101103019993 and 1101103020020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101103020037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78650215710 + ... + 78650215723.

It is an arithmetic number, because the mean of its divisors is an integer number (314600862868).

Almost surely, 2^{1101103020031} is an apocalyptic number.

1101103020031 is a deficient number, since it is larger than the sum of its proper divisors (157300431441).

1101103020031 is an equidigital number, since it uses as much as digits as its factorization.

1101103020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157300431440.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1101103020031 its reverse (1300203011011), we get a palindrome (2401306031042).

The spelling of 1101103020031 in words is "one trillion, one hundred one billion, one hundred three million, twenty thousand, thirty-one".