20211031202 has 16 divisors (see below), whose sum is σ = 30732946560. Its totient is φ = 9966987888.

The previous prime is 20211031189. The next prime is 20211031249. The reversal of 20211031202 is 20213011202.

It is a happy number.

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, 82088 + ... + 217164.

It is an arithmetic number, because the mean of its divisors is an integer number (1920809160).

Almost surely, 2^20211031202 is an apocalyptic number.

20211031202 is a deficient number, since it is larger than the sum of its proper divisors (10521915358).

20211031202 is a wasteful number, since it uses less digits than its factorization.

20211031202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136105.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20211031202 its reverse (20213011202), we get a palindrome (40424042404).

The spelling of 20211031202 in words is "twenty billion, two hundred eleven million, thirty-one thousand, two hundred two".