2101401320 has 16 divisors (see below), whose sum is σ = 4728153060. Its totient is φ = 840560512.

The previous prime is 2101401317. The next prime is 2101401329. The reversal of 2101401320 is 231041012.

It can be written as a sum of positive squares in 2 ways, for example, as 1936176004 + 165225316 = 44002^2 + 12854^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2101401295 and 2101401304.

It is not an unprimeable number, because it can be changed into a prime (2101401329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26267477 + ... + 26267556.

Almost surely, 2^2101401320 is an apocalyptic number.

2101401320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101401320 is an abundant number, since it is smaller than the sum of its proper divisors (2626751740).

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

2101401320 is a wasteful number, since it uses less digits than its factorization.

2101401320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52535044 (or 52535040 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2101401320 is about 45841.0440544279. The cubic root of 2101401320 is about 1280.8639431128.

Adding to 2101401320 its reverse (231041012), we get a palindrome (2332442332).

The spelling of 2101401320 in words is "two billion, one hundred one million, four hundred one thousand, three hundred twenty".