20135213301 has 16 divisors (see below), whose sum is σ = 30689424000. Its totient is φ = 11503138368.

The previous prime is 20135213297. The next prime is 20135213303. The reversal of 20135213301 is 10331253102.

It is not a de Polignac number, because 20135213301 - 2² = 20135213297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135213303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18906 + ... + 201563.

It is an arithmetic number, because the mean of its divisors is an integer number (1918089000).

Almost surely, 2^20135213301 is an apocalyptic number.

20135213301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20135213301 is a deficient number, since it is larger than the sum of its proper divisors (10554210699).

20135213301 is a wasteful number, since it uses less digits than its factorization.

20135213301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224828.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 20135213301 its reverse (10331253102), we get a palindrome (30466466403).

The spelling of 20135213301 in words is "twenty billion, one hundred thirty-five million, two hundred thirteen thousand, three hundred one".