231000002 has 4 divisors (see below), whose sum is σ = 346500006. Its totient is φ = 115500000.

The previous prime is 230999969. The next prime is 231000013. The reversal of 231000002 is 200000132.

231000002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 141110641 + 89889361 = 11879^2 + 9481^2 .

It is a super-2 number, since 2×231000002² = 106722001848000008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57749999 + ... + 57750002.

Almost surely, 2^231000002 is an apocalyptic number.

231000002 is a deficient number, since it is larger than the sum of its proper divisors (115500004).

231000002 is a wasteful number, since it uses less digits than its factorization.

231000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115500003.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 231000002 is about 15198.6842193658. The cubic root of 231000002 is about 613.5792457370.

Adding to 231000002 its reverse (200000132), we get a palindrome (431000134).

The spelling of 231000002 in words is "two hundred thirty-one million, two", and thus it is an aban number.