202320011221031 has 16 divisors (see below), whose sum is σ = 222899374529568. Its totient is φ = 182105109312000.

The previous prime is 202320011221021. The next prime is 202320011221039. The reversal of 202320011221031 is 130122110023202.

It is a cyclic number.

It is not a de Polignac number, because 202320011221031 - 2²² = 202320007026727 is a prime.

It is a super-2 number, since 2×202320011221031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202320011220994 and 202320011221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202320011221039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221469755 + ... + 222381411.

It is an arithmetic number, because the mean of its divisors is an integer number (13931210908098).

Almost surely, 2^{202320011221031} is an apocalyptic number.

202320011221031 is a deficient number, since it is larger than the sum of its proper divisors (20579363308537).

202320011221031 is a wasteful number, since it uses less digits than its factorization.

202320011221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111522.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 202320011221031 its reverse (130122110023202), we get a palindrome (332442121244233).

It can be divided in two parts, 2023200 and 11221031, that added together give a palindrome (13244231).

The spelling of 202320011221031 in words is "two hundred two trillion, three hundred twenty billion, eleven million, two hundred twenty-one thousand, thirty-one".