20203701870 has 64 divisors (see below), whose sum is σ = 55681032960. Its totient is φ = 4640083200.

The previous prime is 20203701853. The next prime is 20203701871. The reversal of 20203701870 is 7810730202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203701871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1604871 + ... + 1617410.

It is an arithmetic number, because the mean of its divisors is an integer number (870016140).

Almost surely, 2^20203701870 is an apocalyptic number.

20203701870 is an abundant number, since it is smaller than the sum of its proper divisors (35477331090).

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

20203701870 is a wasteful number, since it uses less digits than its factorization.

20203701870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222321.

The product of its (nonzero) digits is 4704, while the sum is 30.

The spelling of 20203701870 in words is "twenty billion, two hundred three million, seven hundred one thousand, eight hundred seventy".