2101541355 has 80 divisors (see below), whose sum is σ = 3936255840. Its totient is φ = 1071595008.

The previous prime is 2101541333. The next prime is 2101541359. The reversal of 2101541355 is 5531451012.

It is not a de Polignac number, because 2101541355 - 2¹² = 2101537259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2101541359) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 882927 + ... + 885303.

It is an arithmetic number, because the mean of its divisors is an integer number (49203198).

Almost surely, 2^2101541355 is an apocalyptic number.

2101541355 is a deficient number, since it is larger than the sum of its proper divisors (1834714485).

2101541355 is a wasteful number, since it uses less digits than its factorization.

2101541355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2481 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 2101541355 is about 45842.5714265681. The cubic root of 2101541355 is about 1280.8923942542.

Adding to 2101541355 its reverse (5531451012), we get a palindrome (7632992367).

The spelling of 2101541355 in words is "two billion, one hundred one million, five hundred forty-one thousand, three hundred fifty-five".