20310123411 has 16 divisors (see below), whose sum is σ = 30213932320. Its totient is φ = 13483895040.

The previous prime is 20310123391. The next prime is 20310123413. The reversal of 20310123411 is 11432101302.

20310123411 is a `hidden beast` number, since 2 + 0 + 310 + 12 + 341 + 1 = 666.

It is not a de Polignac number, because 20310123411 - 2³¹ = 18162639763 is a prime.

It is a super-2 number, since 2×20310123411² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310123413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554130 + ... + 1567143.

It is an arithmetic number, because the mean of its divisors is an integer number (1888370770).

Almost surely, 2^20310123411 is an apocalyptic number.

20310123411 is a deficient number, since it is larger than the sum of its proper divisors (9903808909).

20310123411 is a wasteful number, since it uses less digits than its factorization.

20310123411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121523 (or 3121517 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20310123411 its reverse (11432101302), we get a palindrome (31742224713).

The spelling of 20310123411 in words is "twenty billion, three hundred ten million, one hundred twenty-three thousand, four hundred eleven".