2113204451 has 8 divisors (see below), whose sum is σ = 2195462880. Its totient is φ = 2031572032.

The previous prime is 2113204439. The next prime is 2113204463. The reversal of 2113204451 is 1544023112.

It is an interprime number because it is at equal distance from previous prime (2113204439) and next prime (2113204463).

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

It is a de Polignac number, because none of the positive numbers 2^k-2113204451 is a prime.

It is a super-2 number, since 2×2113204451² = 8931266103452422802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113204481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149615 + ... + 163128.

It is an arithmetic number, because the mean of its divisors is an integer number (274432860).

Almost surely, 2^2113204451 is an apocalyptic number.

2113204451 is a deficient number, since it is larger than the sum of its proper divisors (82258429).

2113204451 is a wasteful number, since it uses less digits than its factorization.

2113204451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313005.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2113204451 is about 45969.6035549579. The cubic root of 2113204451 is about 1283.2575819832.

Adding to 2113204451 its reverse (1544023112), we get a palindrome (3657227563).

The spelling of 2113204451 in words is "two billion, one hundred thirteen million, two hundred four thousand, four hundred fifty-one".