1361021103 has 32 divisors (see below), whose sum is σ = 2173644480. Its totient is φ = 836697600.

The previous prime is 1361021093. The next prime is 1361021119. The reversal of 1361021103 is 3011201631.

1361021103 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1361021103 - 2¹⁷ = 1360890031 is a prime.

It is a super-2 number, since 2×1361021103² = 3704756885622673218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361021153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 631075 + ... + 633227.

It is an arithmetic number, because the mean of its divisors is an integer number (67926390).

Almost surely, 2^1361021103 is an apocalyptic number.

1361021103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1361021103 is a deficient number, since it is larger than the sum of its proper divisors (812623377).

1361021103 is a wasteful number, since it uses less digits than its factorization.

1361021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976 (or 3970 counting only the distinct ones).

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

The square root of 1361021103 is about 36892.0195028681. The cubic root of 1361021103 is about 1108.2088644188.

Adding to 1361021103 its reverse (3011201631), we get a palindrome (4372222734).

The spelling of 1361021103 in words is "one billion, three hundred sixty-one million, twenty-one thousand, one hundred three".