1231222023037 has 2 divisors, whose sum is σ = 1231222023038. Its totient is φ = 1231222023036.

The previous prime is 1231222022951. The next prime is 1231222023047. The reversal of 1231222023037 is 7303202221321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 680318134596 + 550903888441 = 824814^2 + 742229^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231222023037 - 2¹¹ = 1231222020989 is a prime.

It is a super-2 number, since 2×1231222023037² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231222022996 and 1231222023014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231222023047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615611011518 + 615611011519.

It is an arithmetic number, because the mean of its divisors is an integer number (615611011519).

Almost surely, 2^{1231222023037} is an apocalyptic number.

It is an amenable number.

1231222023037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231222023037 is an equidigital number, since it uses as much as digits as its factorization.

1231222023037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 1231222023037 its reverse (7303202221321), we get a palindrome (8534424244358).

The spelling of 1231222023037 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-two million, twenty-three thousand, thirty-seven".