1037117021 has 4 divisors (see below), whose sum is σ = 1037571612. Its totient is φ = 1036662432.

The previous prime is 1037117009. The next prime is 1037117023. The reversal of 1037117021 is 1207117301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 620508100 + 416608921 = 24910^2 + 20411^2 .

It is a cyclic number.

It is not a de Polignac number, because 1037117021 - 2¹⁰ = 1037115997 is a prime.

It is a super-2 number, since 2×1037117021² = 2151223430495828882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1037117023) 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, 223856 + ... + 228441.

It is an arithmetic number, because the mean of its divisors is an integer number (259392903).

Almost surely, 2^1037117021 is an apocalyptic number.

It is an amenable number.

1037117021 is a deficient number, since it is larger than the sum of its proper divisors (454591).

1037117021 is an equidigital number, since it uses as much as digits as its factorization.

1037117021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454590.

The product of its (nonzero) digits is 294, while the sum is 23.

The square root of 1037117021 is about 32204.3012810401. The cubic root of 1037117021 is about 1012.2223459774. Note that the first 3 decimals are identical.

The spelling of 1037117021 in words is "one billion, thirty-seven million, one hundred seventeen thousand, twenty-one".