1231214402 has 16 divisors (see below), whose sum is σ = 2120752800. Its totient is φ = 530187840.

The previous prime is 1231214389. The next prime is 1231214417. The reversal of 1231214402 is 2044121321.

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, 1472327 + ... + 1473162.

It is an arithmetic number, because the mean of its divisors is an integer number (132547050).

Almost surely, 2^1231214402 is an apocalyptic number.

1231214402 is a deficient number, since it is larger than the sum of its proper divisors (889538398).

1231214402 is a wasteful number, since it uses less digits than its factorization.

1231214402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945521.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1231214402 is about 35088.6648648819. The cubic root of 1231214402 is about 1071.7937717058.

Adding to 1231214402 its reverse (2044121321), we get a palindrome (3275335723).

The spelling of 1231214402 in words is "one billion, two hundred thirty-one million, two hundred fourteen thousand, four hundred two".