1231012222331 has 8 divisors (see below), whose sum is σ = 1259655439680. Its totient is φ = 1202369688072.

The previous prime is 1231012222313. The next prime is 1231012222337. The reversal of 1231012222331 is 1332222101321.

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 1231012222331 - 2²² = 1231008028027 is a prime.

It is a super-2 number, since 2×1231012222331² (a number of 25 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 = 1231012222297 and 1231012222306.

It is not an unprimeable number, because it can be changed into a prime (1231012222337) 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, 6257636 + ... + 6451358.

It is an arithmetic number, because the mean of its divisors is an integer number (157456929960).

Almost surely, 2^{1231012222331} is an apocalyptic number.

1231012222331 is a deficient number, since it is larger than the sum of its proper divisors (28643217349).

1231012222331 is a wasteful number, since it uses less digits than its factorization.

1231012222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341545.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1231012222331 its reverse (1332222101321), we get a palindrome (2563234323652).

It can be divided in two parts, 123101 and 2222331, that added together give a palindrome (2345432).

The spelling of 1231012222331 in words is "one trillion, two hundred thirty-one billion, twelve million, two hundred twenty-two thousand, three hundred thirty-one".