1231404002 has 8 divisors (see below), whose sum is σ = 1854835200. Its totient is φ = 613125604.

The previous prime is 1231403989. The next prime is 1231404071. The reversal of 1231404002 is 2004041321.

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

It is a super-2 number, since 2×1231404002² = 3032711632283232008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287602 + ... + 1288557.

It is an arithmetic number, because the mean of its divisors is an integer number (231854400).

Almost surely, 2^1231404002 is an apocalyptic number.

1231404002 is a deficient number, since it is larger than the sum of its proper divisors (623431198).

1231404002 is a wasteful number, since it uses less digits than its factorization.

1231404002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576400.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1231404002 is about 35091.3664880694. The cubic root of 1231404002 is about 1071.8487855925.

Adding to 1231404002 its reverse (2004041321), we get a palindrome (3235445323).

The spelling of 1231404002 in words is "one billion, two hundred thirty-one million, four hundred four thousand, two".