20313261501026 has 64 divisors (see below), whose sum is σ = 33901299653760. Its totient is φ = 9069949278720.

The previous prime is 20313261501017. The next prime is 20313261501041. The reversal of 20313261501026 is 62010516231302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20313261500983 and 20313261501001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104839550 + ... + 105033126.

It is an arithmetic number, because the mean of its divisors is an integer number (529707807090).

Almost surely, 2^{20313261501026} is an apocalyptic number.

20313261501026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20313261501026 is a deficient number, since it is larger than the sum of its proper divisors (13588038152734).

20313261501026 is a wasteful number, since it uses less digits than its factorization.

20313261501026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194739.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 20313261501026 its reverse (62010516231302), we get a palindrome (82323777732328).

The spelling of 20313261501026 in words is "twenty trillion, three hundred thirteen billion, two hundred sixty-one million, five hundred one thousand, twenty-six".