21031022311130 has 32 divisors (see below), whose sum is σ = 41376302924544. Its totient is φ = 7649400534336.

The previous prime is 21031022311121. The next prime is 21031022311151. The reversal of 21031022311130 is 3111322013012.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207283042 + ... + 1207300461.

It is an arithmetic number, because the mean of its divisors is an integer number (1293009466392).

Almost surely, 2^{21031022311130} is an apocalyptic number.

21031022311130 is a deficient number, since it is larger than the sum of its proper divisors (20345280613414).

21031022311130 is a wasteful number, since it uses less digits than its factorization.

21031022311130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414583590.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21031022311130 its reverse (3111322013012), we get a palindrome (24142344324142).

The spelling of 21031022311130 in words is "twenty-one trillion, thirty-one billion, twenty-two million, three hundred eleven thousand, one hundred thirty".