20352501231 has 8 divisors (see below), whose sum is σ = 27138109824. Its totient is φ = 13567613400.

The previous prime is 20352501203. The next prime is 20352501241. The reversal of 20352501231 is 13210525302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20352501231 - 2¹⁸ = 20352239087 is a prime.

It is a super-2 number, since 2×20352501231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352501241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110445 + ... + 230006.

It is an arithmetic number, because the mean of its divisors is an integer number (3392263728).

Almost surely, 2^20352501231 is an apocalyptic number.

20352501231 is a deficient number, since it is larger than the sum of its proper divisors (6785608593).

20352501231 is a wasteful number, since it uses less digits than its factorization.

20352501231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360381.

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 20352501231 in words is "twenty billion, three hundred fifty-two million, five hundred one thousand, two hundred thirty-one".