1312221023030 has 16 divisors (see below), whose sum is σ = 2486313517680. Its totient is φ = 497262703392.

The previous prime is 1312221023027. The next prime is 1312221023039. The reversal of 1312221023030 is 303201222131.

It is a junction number, because it is equal to n+sod(n) for n = 1312221022993 and 1312221023011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312221023039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3453213029 + ... + 3453213408.

It is an arithmetic number, because the mean of its divisors is an integer number (155394594855).

Almost surely, 2^{1312221023030} is an apocalyptic number.

1312221023030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312221023030 is a deficient number, since it is larger than the sum of its proper divisors (1174092494650).

1312221023030 is a wasteful number, since it uses less digits than its factorization.

1312221023030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6906426463.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1312221023030 its reverse (303201222131), we get a palindrome (1615422245161).

The spelling of 1312221023030 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, twenty-three thousand, thirty".