1023212212131 has 16 divisors (see below), whose sum is σ = 1369286833824. Its totient is φ = 679639816704.

The previous prime is 1023212212129. The next prime is 1023212212159. The reversal of 1023212212131 is 1312122123201.

It is not a de Polignac number, because 1023212212131 - 2¹ = 1023212212129 is a prime.

It is a super-2 number, since 2×1023212212131² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1023212212098 and 1023212212107.

It is not an unprimeable number, because it can be changed into a prime (1023212212031) 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, 25652155 + ... + 25692011.

It is an arithmetic number, because the mean of its divisors is an integer number (85580427114).

Almost surely, 2^{1023212212131} is an apocalyptic number.

1023212212131 is a deficient number, since it is larger than the sum of its proper divisors (346074621693).

1023212212131 is a wasteful number, since it uses less digits than its factorization.

1023212212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71030.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1023212212131 its reverse (1312122123201), we get a palindrome (2335334335332).

The spelling of 1023212212131 in words is "one trillion, twenty-three billion, two hundred twelve million, two hundred twelve thousand, one hundred thirty-one".