2101011534 has 32 divisors (see below), whose sum is σ = 4726565280. Its totient is φ = 700335720.

The previous prime is 2101011491. The next prime is 2101011547. The reversal of 2101011534 is 4351101012.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235797 + ... + 244544.

It is an arithmetic number, because the mean of its divisors is an integer number (147705165).

Almost surely, 2^2101011534 is an apocalyptic number.

2101011534 is an abundant number, since it is smaller than the sum of its proper divisors (2625553746).

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

2101011534 is an frugal number, since it uses more digits than its factorization.

2101011534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480364 (or 480346 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2101011534 is about 45836.7923615953. The cubic root of 2101011534 is about 1280.7847429936.

Adding to 2101011534 its reverse (4351101012), we get a palindrome (6452112546).

The spelling of 2101011534 in words is "two billion, one hundred one million, eleven thousand, five hundred thirty-four".