1020212303231 has 16 divisors (see below), whose sum is σ = 1140736869888. Its totient is φ = 904389192000.

The previous prime is 1020212303183. The next prime is 1020212303263. The reversal of 1020212303231 is 1323032120201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020212303231 is a prime.

It is a super-2 number, since 2×1020212303231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020212303431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510151 + ... + 2078696.

It is an arithmetic number, because the mean of its divisors is an integer number (71296054368).

Almost surely, 2^{1020212303231} is an apocalyptic number.

1020212303231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1020212303231 is a deficient number, since it is larger than the sum of its proper divisors (120524566657).

1020212303231 is a wasteful number, since it uses less digits than its factorization.

1020212303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589502.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1020212303231 its reverse (1323032120201), we get a palindrome (2343244423432).

The spelling of 1020212303231 in words is "one trillion, twenty billion, two hundred twelve million, three hundred three thousand, two hundred thirty-one".