20203121010 has 16 divisors (see below), whose sum is σ = 48487490496. Its totient is φ = 5387498928.

The previous prime is 20203120999. The next prime is 20203121047. The reversal of 20203121010 is 1012130202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336718654 + ... + 336718713.

It is an arithmetic number, because the mean of its divisors is an integer number (3030468156).

Almost surely, 2^20203121010 is an apocalyptic number.

20203121010 is an abundant number, since it is smaller than the sum of its proper divisors (28284369486).

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

20203121010 is a wasteful number, since it uses less digits than its factorization.

20203121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673437377.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20203121010 its reverse (1012130202), we get a palindrome (21215251212).

The spelling of 20203121010 in words is "twenty billion, two hundred three million, one hundred twenty-one thousand, ten".