2111235510142 has 64 divisors (see below), whose sum is σ = 3680154938304. Its totient is φ = 897732771840.

The previous prime is 2111235510133. The next prime is 2111235510143. The reversal of 2111235510142 is 2410155321112.

It is a self number, because there is not a number n which added to its sum of digits gives 2111235510142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111235510143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86100868 + ... + 86125384.

It is an arithmetic number, because the mean of its divisors is an integer number (57502420911).

Almost surely, 2^{2111235510142} is an apocalyptic number.

2111235510142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2111235510142 is a deficient number, since it is larger than the sum of its proper divisors (1568919428162).

2111235510142 is a wasteful number, since it uses less digits than its factorization.

2111235510142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25933.

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 2111235510142 in words is "two trillion, one hundred eleven billion, two hundred thirty-five million, five hundred ten thousand, one hundred forty-two".