1331002131 has 8 divisors (see below), whose sum is σ = 1879061904. Its totient is φ = 835138560.

The previous prime is 1331002129. The next prime is 1331002201. The reversal of 1331002131 is 1312001331.

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

It is not a de Polignac number, because 1331002131 - 2¹ = 1331002129 is a prime.

It is a super-2 number, since 2×1331002131² = 3543133345453082322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1331002131.

It is not an unprimeable number, because it can be changed into a prime (1331002121) 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, 13048990 + ... + 13049091.

It is an arithmetic number, because the mean of its divisors is an integer number (234882738).

Almost surely, 2^1331002131 is an apocalyptic number.

1331002131 is a deficient number, since it is larger than the sum of its proper divisors (548059773).

1331002131 is a wasteful number, since it uses less digits than its factorization.

1331002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26098101.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1331002131 is about 36482.9018993829. The cubic root of 1331002131 is about 1100.0005870520. Note that the first 3 decimals are identical.

Adding to 1331002131 its reverse (1312001331), we get a palindrome (2643003462).

The spelling of 1331002131 in words is "one billion, three hundred thirty-one million, two thousand, one hundred thirty-one".