1000032121 has 4 divisors (see below), whose sum is σ = 1090944144. Its totient is φ = 909120100.

The previous prime is 1000032101. The next prime is 1000032133. The reversal of 1000032121 is 1212300001.

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 a cyclic number.

It is not a de Polignac number, because 1000032121 - 2¹⁵ = 999999353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000032098 and 1000032107.

It is not an unprimeable number, because it can be changed into a prime (1000032101) 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, 45455995 + ... + 45456016.

It is an arithmetic number, because the mean of its divisors is an integer number (272736036).

Almost surely, 2^1000032121 is an apocalyptic number.

1000032121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1000032121 is a deficient number, since it is larger than the sum of its proper divisors (90912023).

1000032121 is an equidigital number, since it uses as much as digits as its factorization.

1000032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90912022.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1000032121 is about 31623.2844752091. The cubic root of 1000032121 is about 1000.0107068854.

Adding to 1000032121 its reverse (1212300001), we get a palindrome (2212332122).

The spelling of 1000032121 in words is "one billion, thirty-two thousand, one hundred twenty-one".