1311102061140 has 24 divisors (see below), whose sum is σ = 3671085771360. Its totient is φ = 349627216288.

The previous prime is 1311102061133. The next prime is 1311102061177. The reversal of 1311102061140 is 411602011131.

It is a super-2 number, since 2×1311102061140² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10925850450 + ... + 10925850569.

It is an arithmetic number, because the mean of its divisors is an integer number (152961907140).

Almost surely, 2^{1311102061140} is an apocalyptic number.

1311102061140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311102061140 is an abundant number, since it is smaller than the sum of its proper divisors (2359983710220).

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

1311102061140 is a wasteful number, since it uses less digits than its factorization.

1311102061140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21851701031 (or 21851701029 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 1311102061140 its reverse (411602011131), we get a palindrome (1722704072271).

The spelling of 1311102061140 in words is "one trillion, three hundred eleven billion, one hundred two million, sixty-one thousand, one hundred forty".