1312231430134 has 4 divisors (see below), whose sum is σ = 1968347145204. Its totient is φ = 656115715066.

The previous prime is 1312231430101. The next prime is 1312231430137. The reversal of 1312231430134 is 4310341322131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312231430137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328057857532 + ... + 328057857535.

It is an arithmetic number, because the mean of its divisors is an integer number (492086786301).

Almost surely, 2^{1312231430134} is an apocalyptic number.

1312231430134 is a deficient number, since it is larger than the sum of its proper divisors (656115715070).

1312231430134 is an equidigital number, since it uses as much as digits as its factorization.

1312231430134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656115715069.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1312231430134 its reverse (4310341322131), we get a palindrome (5622572752265).

The spelling of 1312231430134 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, four hundred thirty thousand, one hundred thirty-four".