1030123111 has 4 divisors (see below), whose sum is σ = 1052040672. Its totient is φ = 1008205552.

The previous prime is 1030123033. The next prime is 1030123117. The reversal of 1030123111 is 1113210301.

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 1030123111 - 2¹¹ = 1030121063 is a prime.

It is a super-2 number, since 2×1030123111² = 2122307247632636642, 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 = 1030123091 and 1030123100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030123117) 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 3 ways as a sum of consecutive naturals, for example, 10958710 + ... + 10958803.

It is an arithmetic number, because the mean of its divisors is an integer number (263010168).

Almost surely, 2^1030123111 is an apocalyptic number.

1030123111 is a deficient number, since it is larger than the sum of its proper divisors (21917561).

1030123111 is an equidigital number, since it uses as much as digits as its factorization.

1030123111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21917560.

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

The square root of 1030123111 is about 32095.5310128996. The cubic root of 1030123111 is about 1009.9418686930.

Adding to 1030123111 its reverse (1113210301), we get a palindrome (2143333412).

The spelling of 1030123111 in words is "one billion, thirty million, one hundred twenty-three thousand, one hundred eleven".