1051103220 has 48 divisors (see below), whose sum is σ = 3071053440. Its totient is φ = 268107136.

The previous prime is 1051103213. The next prime is 1051103227. The reversal of 1051103220 is 223011501.

It is an interprime number because it is at equal distance from previous prime (1051103213) and next prime (1051103227).

It is a super-2 number, since 2×1051103220² = 2209635958188736800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1051103220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051103227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379455 + ... + 382214.

It is an arithmetic number, because the mean of its divisors is an integer number (63980280).

Almost surely, 2^1051103220 is an apocalyptic number.

1051103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051103220 is an abundant number, since it is smaller than the sum of its proper divisors (2019950220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051103220 is a wasteful number, since it uses less digits than its factorization.

1051103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761704 (or 761702 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1051103220 is about 32420.7220770914. The cubic root of 1051103220 is about 1016.7522032604.

Adding to 1051103220 its reverse (223011501), we get a palindrome (1274114721).

The spelling of 1051103220 in words is "one billion, fifty-one million, one hundred three thousand, two hundred twenty".