1231320202030 has 8 divisors (see below), whose sum is σ = 2216376363672. Its totient is φ = 492528080808.

The previous prime is 1231320202003. The next prime is 1231320202039. The reversal of 1231320202030 is 302020231321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1231320202030² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231320201989 and 1231320202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231320202039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61566010092 + ... + 61566010111.

It is an arithmetic number, because the mean of its divisors is an integer number (277047045459).

Almost surely, 2^{1231320202030} is an apocalyptic number.

1231320202030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231320202030 is a deficient number, since it is larger than the sum of its proper divisors (985056161642).

1231320202030 is a wasteful number, since it uses less digits than its factorization.

1231320202030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123132020210.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1231320202030 its reverse (302020231321), we get a palindrome (1533340433351).

The spelling of 1231320202030 in words is "one trillion, two hundred thirty-one billion, three hundred twenty million, two hundred two thousand, thirty".