1301006421 has 32 divisors (see below), whose sum is σ = 2264384640. Its totient is φ = 727833600.

The previous prime is 1301006417. The next prime is 1301006449. The reversal of 1301006421 is 1246001031.

It is a happy number.

1301006421 is a `hidden beast` number, since 13 + 0 + 10 + 0 + 642 + 1 = 666.

It is not a de Polignac number, because 1301006421 - 2² = 1301006417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1301006394 and 1301006403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301006411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164620 + ... + 172341.

It is an arithmetic number, because the mean of its divisors is an integer number (70762020).

Almost surely, 2^1301006421 is an apocalyptic number.

1301006421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1301006421 is a deficient number, since it is larger than the sum of its proper divisors (963378219).

1301006421 is a wasteful number, since it uses less digits than its factorization.

1301006421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336994 (or 336988 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1301006421 is about 36069.4666026544. The cubic root of 1301006421 is about 1091.6744516224.

Adding to 1301006421 its reverse (1246001031), we get a palindrome (2547007452).

The spelling of 1301006421 in words is "one billion, three hundred one million, six thousand, four hundred twenty-one".