1231043222434 has 32 divisors (see below), whose sum is σ = 1972839286656. Its totient is φ = 574104917760.

The previous prime is 1231043222429. The next prime is 1231043222471. The reversal of 1231043222434 is 4342223401321.

It is a junction number, because it is equal to n+sod(n) for n = 1231043222396 and 1231043222405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1551912 + ... + 2206924.

It is an arithmetic number, because the mean of its divisors is an integer number (61651227708).

Almost surely, 2^{1231043222434} is an apocalyptic number.

1231043222434 is a deficient number, since it is larger than the sum of its proper divisors (741796064222).

1231043222434 is a wasteful number, since it uses less digits than its factorization.

1231043222434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655530.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1231043222434 its reverse (4342223401321), we get a palindrome (5573266623755).

The spelling of 1231043222434 in words is "one trillion, two hundred thirty-one billion, forty-three million, two hundred twenty-two thousand, four hundred thirty-four".