1251421141301 has 4 divisors (see below), whose sum is σ = 1281943608204. Its totient is φ = 1220898674400.

The previous prime is 1251421141279. The next prime is 1251421141307. The reversal of 1251421141301 is 1031411241521.

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 748242300100 + 503178841201 = 865010^2 + 709351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1251421141301 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 (1251421141307) 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, 15261233390 + ... + 15261233471.

It is an arithmetic number, because the mean of its divisors is an integer number (320485902051).

Almost surely, 2^{1251421141301} is an apocalyptic number.

It is an amenable number.

1251421141301 is a deficient number, since it is larger than the sum of its proper divisors (30522466903).

1251421141301 is an equidigital number, since it uses as much as digits as its factorization.

1251421141301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30522466902.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 1251421141301 its reverse (1031411241521), we get a palindrome (2282832382822).

The spelling of 1251421141301 in words is "one trillion, two hundred fifty-one billion, four hundred twenty-one million, one hundred forty-one thousand, three hundred one".