1301921460397 has 4 divisors (see below), whose sum is σ = 1302161805756. Its totient is φ = 1301681115040.

The previous prime is 1301921460277. The next prime is 1301921460443. The reversal of 1301921460397 is 7930641291031.

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 461657738116 + 840263722281 = 679454^2 + 916659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301921460397 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 (1301921463397) 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, 120164554 + ... + 120175387.

It is an arithmetic number, because the mean of its divisors is an integer number (325540451439).

Almost surely, 2^{1301921460397} is an apocalyptic number.

It is an amenable number.

1301921460397 is a deficient number, since it is larger than the sum of its proper divisors (240345359).

1301921460397 is an equidigital number, since it uses as much as digits as its factorization.

1301921460397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240345358.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 1301921460397 in words is "one trillion, three hundred one billion, nine hundred twenty-one million, four hundred sixty thousand, three hundred ninety-seven".