1331002231 has 8 divisors (see below), whose sum is σ = 1508828720. Its totient is φ = 1163953152.

The previous prime is 1331002223. The next prime is 1331002243. The reversal of 1331002231 is 1322001331.

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 1331002231 - 2³ = 1331002223 is a prime.

It is a super-2 number, since 2×1331002231² = 3543133877853954722, 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 (1331002201) 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, 2694090 + ... + 2694583.

It is an arithmetic number, because the mean of its divisors is an integer number (188603590).

Almost surely, 2^1331002231 is an apocalyptic number.

1331002231 is a deficient number, since it is larger than the sum of its proper divisors (177826489).

1331002231 is a wasteful number, since it uses less digits than its factorization.

1331002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388705.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1331002231 is about 36482.9032698879. The cubic root of 1331002231 is about 1100.0006146002. Note that the first 3 decimals are identical.

Adding to 1331002231 its reverse (1322001331), we get a palindrome (2653003562).

The spelling of 1331002231 in words is "one billion, three hundred thirty-one million, two thousand, two hundred thirty-one".