1311234502122 has 24 divisors (see below), whose sum is σ = 2842097115780. Its totient is φ = 436910624640.

The previous prime is 1311234502103. The next prime is 1311234502153. The reversal of 1311234502122 is 2212054321131.

It is a happy number.

1311234502122 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 2 + 34 + 502 + 122 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1259873798481 + 51360703641 = 1122441^2 + 226629^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13913629 + ... + 14007552.

Almost surely, 2^{1311234502122} is an apocalyptic number.

1311234502122 is an abundant number, since it is smaller than the sum of its proper divisors (1530862613658).

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

1311234502122 is a wasteful number, since it uses less digits than its factorization.

1311234502122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27923798 (or 27923795 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1311234502122 its reverse (2212054321131), we get a palindrome (3523288823253).

The spelling of 1311234502122 in words is "one trillion, three hundred eleven billion, two hundred thirty-four million, five hundred two thousand, one hundred twenty-two".