1301221031 has 8 divisors (see below), whose sum is σ = 1419776400. Its totient is φ = 1182709440.

The previous prime is 1301221007. The next prime is 1301221037.

1301221031 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 1301221031 - 2¹⁰ = 1301220007 is a prime.

It is a super-2 number, since 2×1301221031² = 3386352343033405922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301220997 and 1301221015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301221037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101405 + ... + 113513.

It is an arithmetic number, because the mean of its divisors is an integer number (177472050).

Almost surely, 2^1301221031 is an apocalyptic number.

1301221031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1301221031 is a deficient number, since it is larger than the sum of its proper divisors (118555369).

1301221031 is a wasteful number, since it uses less digits than its factorization.

1301221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21889.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1301221031 is about 36072.4414338703. The cubic root of 1301221031 is about 1091.7344747371.

It can be divided in two parts, 13012 and 21031, that added together give a palindrome (34043).

The spelling of 1301221031 in words is "one billion, three hundred one million, two hundred twenty-one thousand, thirty-one".