1030131121 has 4 divisors (see below), whose sum is σ = 1030265712. Its totient is φ = 1029996532.

The previous prime is 1030131103. The next prime is 1030131139. The reversal of 1030131121 is 1211310301.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1211310301 = 43 ⋅28170007.

It is an interprime number because it is at equal distance from previous prime (1030131103) and next prime (1030131139).

It is a cyclic number.

It is not a de Polignac number, because 1030131121 - 2⁷ = 1030130993 is a prime.

It is a super-2 number, since 2×1030131121² = 2122340252905433282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030131821) 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, 55075 + ... + 71368.

It is an arithmetic number, because the mean of its divisors is an integer number (257566428).

Almost surely, 2^1030131121 is an apocalyptic number.

It is an amenable number.

1030131121 is a deficient number, since it is larger than the sum of its proper divisors (134591).

1030131121 is an equidigital number, since it uses as much as digits as its factorization.

1030131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134590.

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

The square root of 1030131121 is about 32095.6557963847. The cubic root of 1030131121 is about 1009.9444863779.

Adding to 1030131121 its reverse (1211310301), we get a palindrome (2241441422).

The spelling of 1030131121 in words is "one billion, thirty million, one hundred thirty-one thousand, one hundred twenty-one".