2011543453442 has 32 divisors (see below), whose sum is σ = 3079799331840. Its totient is φ = 985072568400.

The previous prime is 2011543453441. The next prime is 2011543453453. The reversal of 2011543453442 is 2443543451102.

It is a junction number, because it is equal to n+sod(n) for n = 2011543453396 and 2011543453405.

It is not an unprimeable number, because it can be changed into a prime (2011543453441) 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, 92401643 + ... + 92423409.

It is an arithmetic number, because the mean of its divisors is an integer number (96243729120).

Almost surely, 2^{2011543453442} is an apocalyptic number.

2011543453442 is a deficient number, since it is larger than the sum of its proper divisors (1068255878398).

2011543453442 is a wasteful number, since it uses less digits than its factorization.

2011543453442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24686.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 2011543453442 in words is "two trillion, eleven billion, five hundred forty-three million, four hundred fifty-three thousand, four hundred forty-two".