2102120534 has 8 divisors (see below), whose sum is σ = 3154058688. Its totient is φ = 1050767640.

The previous prime is 2102120519. The next prime is 2102120549. The reversal of 2102120534 is 4350212012.

It is an interprime number because it is at equal distance from previous prime (2102120519) and next prime (2102120549).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137222 + ... + 151769.

It is an arithmetic number, because the mean of its divisors is an integer number (394257336).

Almost surely, 2^2102120534 is an apocalyptic number.

2102120534 is a deficient number, since it is larger than the sum of its proper divisors (1051938154).

2102120534 is a wasteful number, since it uses less digits than its factorization.

2102120534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292630.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2102120534 is about 45848.8880344987. Note that the first 3 decimals coincide. The cubic root of 2102120534 is about 1281.0100535827.

Adding to 2102120534 its reverse (4350212012), we get a palindrome (6452332546).

The spelling of 2102120534 in words is "two billion, one hundred two million, one hundred twenty thousand, five hundred thirty-four".