1230002131 has 4 divisors (see below), whose sum is σ = 1230520672. Its totient is φ = 1229483592.

The previous prime is 1230002117. The next prime is 1230002141. The reversal of 1230002131 is 1312000321.

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

It is a cyclic number.

It is not a de Polignac number, because 1230002131 - 2¹³ = 1229993939 is a prime.

It is a super-2 number, since 2×1230002131² = 3025810484529082322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230002101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255696 + ... + 260461.

It is an arithmetic number, because the mean of its divisors is an integer number (307630168).

Almost surely, 2^1230002131 is an apocalyptic number.

1230002131 is a deficient number, since it is larger than the sum of its proper divisors (518541).

1230002131 is an equidigital number, since it uses as much as digits as its factorization.

1230002131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518540.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1230002131 is about 35071.3862144056. The cubic root of 1230002131 is about 1071.4418884550.

Adding to 1230002131 its reverse (1312000321), we get a palindrome (2542002452).

The spelling of 1230002131 in words is "one billion, two hundred thirty million, two thousand, one hundred thirty-one".