1030123220 has 48 divisors (see below), whose sum is σ = 2474720640. Its totient is φ = 352838784.

The previous prime is 1030123201. The next prime is 1030123231. The reversal of 1030123220 is 223210301.

It is a happy number.

It is a super-2 number, since 2×1030123220² = 2122307696766336800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1030123195 and 1030123204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169067 + ... + 175053.

It is an arithmetic number, because the mean of its divisors is an integer number (51556680).

Almost surely, 2^1030123220 is an apocalyptic number.

1030123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030123220 is an abundant number, since it is smaller than the sum of its proper divisors (1444597420).

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

1030123220 is a wasteful number, since it uses less digits than its factorization.

1030123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7232 (or 7230 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1030123220 is about 32095.5327109553. The cubic root of 1030123220 is about 1009.9419043145.

Adding to 1030123220 its reverse (223210301), we get a palindrome (1253333521).

The spelling of 1030123220 in words is "one billion, thirty million, one hundred twenty-three thousand, two hundred twenty".