1231144130 has 16 divisors (see below), whose sum is σ = 2218005504. Its totient is φ = 492025200.

The previous prime is 1231144129. The next prime is 1231144141. The reversal of 1231144130 is 314411321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41972 + ... + 64991.

It is an arithmetic number, because the mean of its divisors is an integer number (138625344).

Almost surely, 2^1231144130 is an apocalyptic number.

1231144130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231144130 is a deficient number, since it is larger than the sum of its proper divisors (986861374).

1231144130 is a wasteful number, since it uses less digits than its factorization.

1231144130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108121.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1231144130 is about 35087.6635015784. The cubic root of 1231144130 is about 1071.7733803143.

Adding to 1231144130 its reverse (314411321), we get a palindrome (1545555451).

The spelling of 1231144130 in words is "one billion, two hundred thirty-one million, one hundred forty-four thousand, one hundred thirty".