20025431203211 has 16 divisors (see below), whose sum is σ = 23122491302400. Its totient is φ = 16987447422720.

The previous prime is 20025431203199. The next prime is 20025431203223. The reversal of 20025431203211 is 11230213452002.

It is an interprime number because it is at equal distance from previous prime (20025431203199) and next prime (20025431203223).

It is a cyclic number.

It is not a de Polignac number, because 20025431203211 - 2⁴² = 15627384692107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20025431203241) 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, 56105090 + ... + 56460888.

It is an arithmetic number, because the mean of its divisors is an integer number (1445155706400).

Almost surely, 2^{20025431203211} is an apocalyptic number.

20025431203211 is a deficient number, since it is larger than the sum of its proper divisors (3097060099189).

20025431203211 is an equidigital number, since it uses as much as digits as its factorization.

20025431203211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438794.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 20025431203211 its reverse (11230213452002), we get a palindrome (31255644655213).

The spelling of 20025431203211 in words is "twenty trillion, twenty-five billion, four hundred thirty-one million, two hundred three thousand, two hundred eleven".