10121331 has 8 divisors (see below), whose sum is σ = 14721984. Its totient is φ = 6134120.

The previous prime is 10121329. The next prime is 10121333. The reversal of 10121331 is 13312101.

10121331 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10121329) and next prime (10121333).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10121331 - 2¹ = 10121329 is a prime.

It is a super-2 number, since 2×10121331² = 204882682423122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10121333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153321 + ... + 153386.

It is an arithmetic number, because the mean of its divisors is an integer number (1840248).

Almost surely, 2^10121331 is an apocalyptic number.

10121331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10121331 is a deficient number, since it is larger than the sum of its proper divisors (4600653).

10121331 is a wasteful number, since it uses less digits than its factorization.

10121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306721.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 10121331 is about 3181.4039353719. The cubic root of 10121331 is about 216.3113009635.

Adding to 10121331 its reverse (13312101), we get a palindrome (23433432).

The spelling of 10121331 in words is "ten million, one hundred twenty-one thousand, three hundred thirty-one".