30231131020331 has 8 divisors (see below), whose sum is σ = 30377921222880. Its totient is φ = 30084582052672.

The previous prime is 30231131020327. The next prime is 30231131020351. The reversal of 30231131020331 is 13302013113203.

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

It is a cyclic number.

It is not a de Polignac number, because 30231131020331 - 2² = 30231131020327 is a prime.

It is a super-2 number, since 2×30231131020331² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231131020297 and 30231131020306.

It is not an unprimeable number, because it can be changed into a prime (30231131020351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60057476 + ... + 60558753.

It is an arithmetic number, because the mean of its divisors is an integer number (3797240152860).

Almost surely, 2^{30231131020331} is an apocalyptic number.

30231131020331 is a deficient number, since it is larger than the sum of its proper divisors (146790202549).

30231131020331 is a wasteful number, since it uses less digits than its factorization.

30231131020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120617445.

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

Adding to 30231131020331 its reverse (13302013113203), we get a palindrome (43533144133534).

The spelling of 30231131020331 in words is "thirty trillion, two hundred thirty-one billion, one hundred thirty-one million, twenty thousand, three hundred thirty-one".