20523154332 has 24 divisors (see below), whose sum is σ = 47889834496. Its totient is φ = 6840697968.

The previous prime is 20523154321. The next prime is 20523154343. The reversal of 20523154332 is 23345132502.

It is an interprime number because it is at equal distance from previous prime (20523154321) and next prime (20523154343).

It is a self number, because there is not a number n which added to its sum of digits gives 20523154332.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 313653 + ... + 373395.

Almost surely, 2^20523154332 is an apocalyptic number.

It is an amenable number.

20523154332 is an abundant number, since it is smaller than the sum of its proper divisors (27366680164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20523154332 is a wasteful number, since it uses less digits than its factorization.

20523154332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88377 (or 88375 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 20523154332 its reverse (23345132502), we get a palindrome (43868286834).

The spelling of 20523154332 in words is "twenty billion, five hundred twenty-three million, one hundred fifty-four thousand, three hundred thirty-two".