1030112121 has 4 divisors (see below), whose sum is σ = 1373482832. Its totient is φ = 686741412.

The previous prime is 1030112119. The next prime is 1030112123. The reversal of 1030112121 is 1212110301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1030112119) and next prime (1030112123).

It is not a de Polignac number, because 1030112121 - 2¹ = 1030112119 is a prime.

It is a super-2 number, since 2×1030112121² = 2122261963662237282, 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 = 1030112097 and 1030112106.

It is not an unprimeable number, because it can be changed into a prime (1030112123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171685351 + ... + 171685356.

It is an arithmetic number, because the mean of its divisors is an integer number (343370708).

Almost surely, 2^1030112121 is an apocalyptic number.

It is an amenable number.

1030112121 is a deficient number, since it is larger than the sum of its proper divisors (343370711).

1030112121 is an equidigital number, since it uses as much as digits as its factorization.

1030112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343370710.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1030112121 is about 32095.3598048067. The cubic root of 1030112121 is about 1009.9382771156.

Adding to 1030112121 its reverse (1212110301), we get a palindrome (2242222422).

It can be divided in two parts, 10301 and 12121, that multiplied together give a palindrome (124858421).

The spelling of 1030112121 in words is "one billion, thirty million, one hundred twelve thousand, one hundred twenty-one".