20011541253 has 32 divisors (see below), whose sum is σ = 30686487552. Its totient is φ = 11481254400.

The previous prime is 20011541243. The next prime is 20011541261. The reversal of 20011541253 is 35214511002.

It is a happy number.

It is not a de Polignac number, because 20011541253 - 2⁴ = 20011541237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011541243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62283 + ... + 209528.

It is an arithmetic number, because the mean of its divisors is an integer number (958952736).

Almost surely, 2^20011541253 is an apocalyptic number.

20011541253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20011541253 is a deficient number, since it is larger than the sum of its proper divisors (10674946299).

20011541253 is a wasteful number, since it uses less digits than its factorization.

20011541253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271945.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 20011541253 in words is "twenty billion, eleven million, five hundred forty-one thousand, two hundred fifty-three".