1312000131421 has 8 divisors (see below), whose sum is σ = 1501333974080. Its totient is φ = 1123142601888.

The previous prime is 1312000131419. The next prime is 1312000131427. The reversal of 1312000131421 is 1241310002131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312000131421 - 2¹ = 1312000131419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312000131427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119072376 + ... + 119083393.

It is an arithmetic number, because the mean of its divisors is an integer number (187666746760).

Almost surely, 2^{1312000131421} is an apocalyptic number.

It is an amenable number.

1312000131421 is a deficient number, since it is larger than the sum of its proper divisors (189333842659).

1312000131421 is an equidigital number, since it uses as much as digits as its factorization.

1312000131421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238156563.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1312000131421 its reverse (1241310002131), we get a palindrome (2553310133552).

The spelling of 1312000131421 in words is "one trillion, three hundred twelve billion, one hundred thirty-one thousand, four hundred twenty-one".