1231330220132 has 12 divisors (see below), whose sum is σ = 2154927801600. Its totient is φ = 615636562536.

The previous prime is 1231330220077. The next prime is 1231330220161. The reversal of 1231330220132 is 2310220331321.

It is a super-2 number, since 2×1231330220132² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231330220098 and 1231330220107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7039688 + ... + 7212479.

It is an arithmetic number, because the mean of its divisors is an integer number (179577316800).

Almost surely, 2^{1231330220132} is an apocalyptic number.

It is an amenable number.

1231330220132 is a deficient number, since it is larger than the sum of its proper divisors (923597581468).

1231330220132 is a wasteful number, since it uses less digits than its factorization.

1231330220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14273770 (or 14273768 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1231330220132 its reverse (2310220331321), we get a palindrome (3541550551453).

The spelling of 1231330220132 in words is "one trillion, two hundred thirty-one billion, three hundred thirty million, two hundred twenty thousand, one hundred thirty-two".