2113211501 has 4 divisors (see below), whose sum is σ = 2116740000. Its totient is φ = 2109683004.

The previous prime is 2113211491. The next prime is 2113211539. The reversal of 2113211501 is 1051123112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113211501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113211501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113211561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1763351 + ... + 1764548.

It is an arithmetic number, because the mean of its divisors is an integer number (529185000).

Almost surely, 2^2113211501 is an apocalyptic number.

It is an amenable number.

2113211501 is a deficient number, since it is larger than the sum of its proper divisors (3528499).

2113211501 is an equidigital number, since it uses as much as digits as its factorization.

2113211501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528498.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 2113211501 is about 45969.6802359990. The cubic root of 2113211501 is about 1283.2590090349.

Adding to 2113211501 its reverse (1051123112), we get a palindrome (3164334613).

The spelling of 2113211501 in words is "two billion, one hundred thirteen million, two hundred eleven thousand, five hundred one".