20251145631703 has 16 divisors (see below), whose sum is σ = 23891924404224. Its totient is φ = 16797361286880.

The previous prime is 20251145631659. The next prime is 20251145631721. The reversal of 20251145631703 is 30713654115202.

It is a cyclic number.

It is not a de Polignac number, because 20251145631703 - 2¹⁷ = 20251145500631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20251145631733) 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, 2164776 + ... + 6722242.

It is an arithmetic number, because the mean of its divisors is an integer number (1493245275264).

Almost surely, 2^{20251145631703} is an apocalyptic number.

20251145631703 is a deficient number, since it is larger than the sum of its proper divisors (3640778772521).

20251145631703 is a wasteful number, since it uses less digits than its factorization.

20251145631703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577982.

The product of its (nonzero) digits is 151200, while the sum is 40.

Adding to 20251145631703 its reverse (30713654115202), we get a palindrome (50964799746905).

The spelling of 20251145631703 in words is "twenty trillion, two hundred fifty-one billion, one hundred forty-five million, six hundred thirty-one thousand, seven hundred three".