20251145311 has 2 divisors, whose sum is σ = 20251145312. Its totient is φ = 20251145310.

The previous prime is 20251145249. The next prime is 20251145333. The reversal of 20251145311 is 11354115202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20251145311 - 2⁹ = 20251144799 is a prime.

It is a super-3 number, since 3×20251145311³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20251145911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10125572655 + 10125572656.

It is an arithmetic number, because the mean of its divisors is an integer number (10125572656).

Almost surely, 2^20251145311 is an apocalyptic number.

20251145311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20251145311 is an equidigital number, since it uses as much as digits as its factorization.

20251145311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 20251145311 in words is "twenty billion, two hundred fifty-one million, one hundred forty-five thousand, three hundred eleven".