1223534423131 has 2 divisors, whose sum is σ = 1223534423132. Its totient is φ = 1223534423130.

The previous prime is 1223534423101. The next prime is 1223534423183. The reversal of 1223534423131 is 1313244353221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223534423131 - 2²⁵ = 1223500868699 is a prime.

It is a super-2 number, since 2×1223534423131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1223534423101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611767211565 + 611767211566.

It is an arithmetic number, because the mean of its divisors is an integer number (611767211566).

Almost surely, 2^{1223534423131} is an apocalyptic number.

1223534423131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223534423131 is an equidigital number, since it uses as much as digits as its factorization.

1223534423131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 34.

Adding to 1223534423131 its reverse (1313244353221), we get a palindrome (2536778776352).

The spelling of 1223534423131 in words is "one trillion, two hundred twenty-three billion, five hundred thirty-four million, four hundred twenty-three thousand, one hundred thirty-one".