231021323141122 has 4 divisors (see below), whose sum is σ = 346531984711686. Its totient is φ = 115510661570560.

The previous prime is 231021323141093. The next prime is 231021323141143. The reversal of 231021323141122 is 221141323120132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 173310089643441 + 57711233497681 = 13164729^2 + 7596791^2 .

It is a super-2 number, since 2×231021323141122² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57755330785279 + ... + 57755330785282.

Almost surely, 2^{231021323141122} is an apocalyptic number.

231021323141122 is a deficient number, since it is larger than the sum of its proper divisors (115510661570564).

231021323141122 is a wasteful number, since it uses less digits than its factorization.

231021323141122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115510661570563.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 231021323141122 its reverse (221141323120132), we get a palindrome (452162646261254).

The spelling of 231021323141122 in words is "two hundred thirty-one trillion, twenty-one billion, three hundred twenty-three million, one hundred forty-one thousand, one hundred twenty-two".