1311102061143 has 64 divisors (see below), whose sum is σ = 2091444406272. Its totient is φ = 714324441600.

The previous prime is 1311102061133. The next prime is 1311102061177. The reversal of 1311102061143 is 3411602011131.

It is not a de Polignac number, because 1311102061143 - 2⁸ = 1311102060887 is a prime.

It is a super-2 number, since 2×1311102061143² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311102061133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 207548221 + ... + 207554537.

It is an arithmetic number, because the mean of its divisors is an integer number (32678818848).

Almost surely, 2^{1311102061143} is an apocalyptic number.

1311102061143 is a deficient number, since it is larger than the sum of its proper divisors (780342345129).

1311102061143 is a wasteful number, since it uses less digits than its factorization.

1311102061143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 1311102061143 its reverse (3411602011131), we get a palindrome (4722704072274).

The spelling of 1311102061143 in words is "one trillion, three hundred eleven billion, one hundred two million, sixty-one thousand, one hundred forty-three".