1321612500234 has 64 divisors (see below), whose sum is σ = 2863371829248. Its totient is φ = 404249745600.

The previous prime is 1321612500233. The next prime is 1321612500281. The reversal of 1321612500234 is 4320052161231.

It is not an unprimeable number, because it can be changed into a prime (1321612500233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22779867 + ... + 22837809.

It is an arithmetic number, because the mean of its divisors is an integer number (44740184832).

Almost surely, 2^{1321612500234} is an apocalyptic number.

1321612500234 is an abundant number, since it is smaller than the sum of its proper divisors (1541759329014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321612500234 is a wasteful number, since it uses less digits than its factorization.

1321612500234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59683.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1321612500234 its reverse (4320052161231), we get a palindrome (5641664661465).

The spelling of 1321612500234 in words is "one trillion, three hundred twenty-one billion, six hundred twelve million, five hundred thousand, two hundred thirty-four".