1231420000234 has 32 divisors (see below), whose sum is σ = 2019113049600. Its totient is φ = 560732229120.

The previous prime is 1231420000171. The next prime is 1231420000247. The reversal of 1231420000234 is 4320000241321.

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, 9483702 + ... + 9612670.

It is an arithmetic number, because the mean of its divisors is an integer number (63097282800).

Almost surely, 2^{1231420000234} is an apocalyptic number.

1231420000234 is a deficient number, since it is larger than the sum of its proper divisors (787693049366).

1231420000234 is a wasteful number, since it uses less digits than its factorization.

1231420000234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138078.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1231420000234 its reverse (4320000241321), we get a palindrome (5551420241555).

The spelling of 1231420000234 in words is "one trillion, two hundred thirty-one billion, four hundred twenty million, two hundred thirty-four", and thus it is an aban number.