1302213121 has 8 divisors (see below), whose sum is σ = 1421881344. Its totient is φ = 1182759120.

The previous prime is 1302213091. The next prime is 1302213137. The reversal of 1302213121 is 1213122031.

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

It is a cyclic number.

It is not a de Polignac number, because 1302213121 - 2⁹ = 1302212609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302213095 and 1302213104.

It is not an unprimeable number, because it can be changed into a prime (1302213151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40705 + ... + 65278.

It is an arithmetic number, because the mean of its divisors is an integer number (177735168).

Almost surely, 2^1302213121 is an apocalyptic number.

1302213121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1302213121 is a deficient number, since it is larger than the sum of its proper divisors (119668223).

1302213121 is a wasteful number, since it uses less digits than its factorization.

1302213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107111.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1302213121 is about 36086.1901702022. The cubic root of 1302213121 is about 1092.0118613054.

Adding to 1302213121 its reverse (1213122031), we get a palindrome (2515335152).

The spelling of 1302213121 in words is "one billion, three hundred two million, two hundred thirteen thousand, one hundred twenty-one".