1031613121 has 12 divisors (see below), whose sum is σ = 1309134960. Its totient is φ = 803853960.

The previous prime is 1031613119. The next prime is 1031613179. The reversal of 1031613121 is 1213161301.

It is not a de Polignac number, because 1031613121 - 2¹ = 1031613119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1031613421) 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 11 ways as a sum of consecutive naturals, for example, 956431 + ... + 957508.

It is an arithmetic number, because the mean of its divisors is an integer number (109094580).

Almost surely, 2^1031613121 is an apocalyptic number.

1031613121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1031613121 is a deficient number, since it is larger than the sum of its proper divisors (277521839).

1031613121 is a wasteful number, since it uses less digits than its factorization.

1031613121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913964 (or 1913957 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1031613121 is about 32118.7347353534. The cubic root of 1031613121 is about 1010.4285737949.

Adding to 1031613121 its reverse (1213161301), we get a palindrome (2244774422).

The spelling of 1031613121 in words is "one billion, thirty-one million, six hundred thirteen thousand, one hundred twenty-one".