20122146783 has 24 divisors (see below), whose sum is σ = 31051737600. Its totient is φ = 12519034704.

The previous prime is 20122146767. The next prime is 20122146823. The reversal of 20122146783 is 38764122102.

It is a happy number.

It is not a de Polignac number, because 20122146783 - 2⁴ = 20122146767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122146763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 866703 + ... + 889616.

It is an arithmetic number, because the mean of its divisors is an integer number (1293822400).

Almost surely, 2^20122146783 is an apocalyptic number.

20122146783 is a deficient number, since it is larger than the sum of its proper divisors (10929590817).

20122146783 is a wasteful number, since it uses less digits than its factorization.

20122146783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756411 (or 1756408 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

Adding to 20122146783 its reverse (38764122102), we get a palindrome (58886268885).

It can be divided in two parts, 201221 and 46783, that added together give a square (248004 = 498²).

The spelling of 20122146783 in words is "twenty billion, one hundred twenty-two million, one hundred forty-six thousand, seven hundred eighty-three".