1321313031230 has 16 divisors (see below), whose sum is σ = 2410943778864. Its totient is φ = 521285140800.

The previous prime is 1321313031211. The next prime is 1321313031253. The reversal of 1321313031230 is 321303131231.

It is a junction number, because it is equal to n+sod(n) for n = 1321313031196 and 1321313031205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905008196 + ... + 905009655.

It is an arithmetic number, because the mean of its divisors is an integer number (150683986179).

Almost surely, 2^{1321313031230} is an apocalyptic number.

1321313031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321313031230 is a deficient number, since it is larger than the sum of its proper divisors (1089630747634).

1321313031230 is a wasteful number, since it uses less digits than its factorization.

1321313031230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810017931.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1321313031230 its reverse (321303131231), we get a palindrome (1642616162461).

The spelling of 1321313031230 in words is "one trillion, three hundred twenty-one billion, three hundred thirteen million, thirty-one thousand, two hundred thirty".