1321253014 has 4 divisors (see below), whose sum is σ = 1981879524. Its totient is φ = 660626506.

The previous prime is 1321252981. The next prime is 1321253023. The reversal of 1321253014 is 4103521231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4103521231 = 1993 ⋅2058967.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330313252 + ... + 330313255.

It is an arithmetic number, because the mean of its divisors is an integer number (495469881).

Almost surely, 2^1321253014 is an apocalyptic number.

1321253014 is a deficient number, since it is larger than the sum of its proper divisors (660626510).

1321253014 is an equidigital number, since it uses as much as digits as its factorization.

1321253014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660626509.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1321253014 is about 36349.0441965122. The cubic root of 1321253014 is about 1097.3082986658.

Adding to 1321253014 its reverse (4103521231), we get a palindrome (5424774245).

The spelling of 1321253014 in words is "one billion, three hundred twenty-one million, two hundred fifty-three thousand, fourteen".