20293132387 has 8 divisors (see below), whose sum is σ = 22139712000. Its totient is φ = 18446844360.

The previous prime is 20293132357. The next prime is 20293132397. The reversal of 20293132387 is 78323139202.

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

It is a cyclic number.

It is not a de Polignac number, because 20293132387 - 2²³ = 20284743779 is a prime.

It is a super-2 number, since 2×20293132387² (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 (20293132357) 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, 88098 + ... + 219880.

It is an arithmetic number, because the mean of its divisors is an integer number (2767464000).

Almost surely, 2^20293132387 is an apocalyptic number.

20293132387 is a deficient number, since it is larger than the sum of its proper divisors (1846579613).

20293132387 is a wasteful number, since it uses less digits than its factorization.

20293132387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145793.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 20293132387 in words is "twenty billion, two hundred ninety-three million, one hundred thirty-two thousand, three hundred eighty-seven".