20361411 has 18 divisors (see below), whose sum is σ = 34213452. Its totient is φ = 11634840.

The previous prime is 20361409. The next prime is 20361413. The reversal of 20361411 is 11416302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20361409) and next prime (20361413).

It is not a de Polignac number, because 20361411 - 2¹ = 20361409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20361413) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22645 + ... + 23526.

Almost surely, 2^20361411 is an apocalyptic number.

20361411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20361411 is a deficient number, since it is larger than the sum of its proper divisors (13852041).

20361411 is a wasteful number, since it uses less digits than its factorization.

20361411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46191 (or 46181 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20361411 is about 4512.3620200511. The cubic root of 20361411 is about 273.0670446775.

Adding to 20361411 its reverse (11416302), we get a palindrome (31777713).

The spelling of 20361411 in words is "twenty million, three hundred sixty-one thousand, four hundred eleven".