1220103019 has 4 divisors (see below), whose sum is σ = 1220196280. Its totient is φ = 1220009760.

The previous prime is 1220103013. The next prime is 1220103023. The reversal of 1220103019 is 9103010221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9103010221 = 31 ⋅293645491.

It is a cyclic number.

It is not a de Polignac number, because 1220103019 - 2⁵ = 1220102987 is a prime.

It is a super-2 number, since 2×1220103019² = 2977302753945828722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220102987 and 1220103005.

It is not an unprimeable number, because it can be changed into a prime (1220103013) 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, 23022 + ... + 54499.

It is an arithmetic number, because the mean of its divisors is an integer number (305049070).

Almost surely, 2^1220103019 is an apocalyptic number.

1220103019 is a deficient number, since it is larger than the sum of its proper divisors (93261).

1220103019 is an equidigital number, since it uses as much as digits as its factorization.

1220103019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93260.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1220103019 is about 34929.9730747105. The cubic root of 1220103019 is about 1068.5598054948.

It can be divided in two parts, 12201030 and 19, that added together give a square (12201049 = 3493²).

The spelling of 1220103019 in words is "one billion, two hundred twenty million, one hundred three thousand, nineteen".