2102344213438 has 16 divisors (see below), whose sum is σ = 3604054660704. Its totient is φ = 900995660640.

The previous prime is 2102344213397. The next prime is 2102344213439. The reversal of 2102344213438 is 8343124432012.

It is a junction number, because it is equal to n+sod(n) for n = 2102344213397 and 2102344213406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102344213439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813448 + ... + 2205988.

It is an arithmetic number, because the mean of its divisors is an integer number (225253416294).

Almost surely, 2^{2102344213438} is an apocalyptic number.

2102344213438 is a deficient number, since it is larger than the sum of its proper divisors (1501710447266).

2102344213438 is a wasteful number, since it uses less digits than its factorization.

2102344213438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500387.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 2102344213438 in words is "two trillion, one hundred two billion, three hundred forty-four million, two hundred thirteen thousand, four hundred thirty-eight".