20523311241207 has 32 divisors (see below), whose sum is σ = 28989955276800. Its totient is φ = 12878713231488.

The previous prime is 20523311241107. The next prime is 20523311241211. The reversal of 20523311241207 is 70214211332502.

It is not a de Polignac number, because 20523311241207 - 2¹¹ = 20523311239159 is a prime.

It is a super-2 number, since 2×20523311241207² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20523311241107) 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, 160919818 + ... + 161047304.

It is an arithmetic number, because the mean of its divisors is an integer number (905936102400).

Almost surely, 2^{20523311241207} is an apocalyptic number.

20523311241207 is a deficient number, since it is larger than the sum of its proper divisors (8466644035593).

20523311241207 is a wasteful number, since it uses less digits than its factorization.

20523311241207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145655.

The product of its (nonzero) digits is 20160, while the sum is 33.

Adding to 20523311241207 its reverse (70214211332502), we get a palindrome (90737522573709).

The spelling of 20523311241207 in words is "twenty trillion, five hundred twenty-three billion, three hundred eleven million, two hundred forty-one thousand, two hundred seven".