1312233121130 has 16 divisors (see below), whose sum is σ = 2443468570920. Its totient is φ = 506793481152.

The previous prime is 1312233121007. The next prime is 1312233121181. The reversal of 1312233121130 is 311213322131.

It can be written as a sum of positive squares in 4 ways, for example, as 1139063118361 + 173170002769 = 1067269^2 + 416137^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312233121096 and 1312233121105.

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, 2262470609 + ... + 2262471188.

Almost surely, 2^{1312233121130} is an apocalyptic number.

1312233121130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312233121130 is a deficient number, since it is larger than the sum of its proper divisors (1131235449790).

1312233121130 is a wasteful number, since it uses less digits than its factorization.

1312233121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524941833.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1312233121130 its reverse (311213322131), we get a palindrome (1623446443261).

The spelling of 1312233121130 in words is "one trillion, three hundred twelve billion, two hundred thirty-three million, one hundred twenty-one thousand, one hundred thirty".