213100012002042 has 48 divisors (see below), whose sum is σ = 504113143330368. Its totient is φ = 64521632255040.

The previous prime is 213100012002029. The next prime is 213100012002047. The reversal of 213100012002042 is 240200210001312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (213100012002047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450837838 + ... + 451310265.

It is an arithmetic number, because the mean of its divisors is an integer number (10502357152716).

Almost surely, 2^{213100012002042} is an apocalyptic number.

213100012002042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213100012002042 is an abundant number, since it is smaller than the sum of its proper divisors (291013131328326).

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

213100012002042 is a wasteful number, since it uses less digits than its factorization.

213100012002042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902149315 (or 902149312 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 213100012002042 its reverse (240200210001312), we get a palindrome (453300222003354).

The spelling of 213100012002042 in words is "two hundred thirteen trillion, one hundred billion, twelve million, two thousand, forty-two".