1421320231241 has 4 divisors (see below), whose sum is σ = 1434359866500. Its totient is φ = 1408280595984.

The previous prime is 1421320231231. The next prime is 1421320231267.

It is a happy number.

1421320231241 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 371607283216 + 1049712948025 = 609596^2 + 1024555^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421320231241 - 2²² = 1421316036937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421320231241.

It is not an unprimeable number, because it can be changed into a prime (1421320231231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6519817466 + ... + 6519817683.

It is an arithmetic number, because the mean of its divisors is an integer number (358589966625).

Almost surely, 2^{1421320231241} is an apocalyptic number.

It is an amenable number.

1421320231241 is a deficient number, since it is larger than the sum of its proper divisors (13039635259).

1421320231241 is a wasteful number, since it uses less digits than its factorization.

1421320231241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13039635258.

The product of its (nonzero) digits is 2304, while the sum is 26.

It can be divided in two parts, 1421320 and 231241, that added together give a palindrome (1652561).

The spelling of 1421320231241 in words is "one trillion, four hundred twenty-one billion, three hundred twenty million, two hundred thirty-one thousand, two hundred forty-one".