1271122768038 has 32 divisors (see below), whose sum is σ = 2690141041152. Its totient is φ = 399577270400.

The previous prime is 1271122768037. The next prime is 1271122768043. The reversal of 1271122768038 is 8308672211721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271122768037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64856643 + ... + 64876238.

It is an arithmetic number, because the mean of its divisors is an integer number (84066907536).

Almost surely, 2^{1271122768038} is an apocalyptic number.

1271122768038 is an abundant number, since it is smaller than the sum of its proper divisors (1419018273114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271122768038 is a wasteful number, since it uses less digits than its factorization.

1271122768038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129732980.

The product of its (nonzero) digits is 451584, while the sum is 48.

Adding to 1271122768038 its reverse (8308672211721), we get a palindrome (9579794979759).

The spelling of 1271122768038 in words is "one trillion, two hundred seventy-one billion, one hundred twenty-two million, seven hundred sixty-eight thousand, thirty-eight".