1321214125 has 48 divisors (see below), whose sum is σ = 2071480320. Its totient is φ = 823548000.

The previous prime is 1321214123. The next prime is 1321214129. The reversal of 1321214125 is 5214121231.

It is not a de Polignac number, because 1321214125 - 2¹ = 1321214123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1321214096 and 1321214105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321214123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99636 + ... + 112114.

It is an arithmetic number, because the mean of its divisors is an integer number (43155840).

Almost surely, 2^1321214125 is an apocalyptic number.

It is an amenable number.

1321214125 is a deficient number, since it is larger than the sum of its proper divisors (750266195).

1321214125 is a wasteful number, since it uses less digits than its factorization.

1321214125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12523 (or 12502 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1321214125 is about 36348.5092541634. The cubic root of 1321214125 is about 1097.2975327135.

Adding to 1321214125 its reverse (5214121231), we get a palindrome (6535335356).

The spelling of 1321214125 in words is "one billion, three hundred twenty-one million, two hundred fourteen thousand, one hundred twenty-five".