1020423133031 has 2 divisors, whose sum is σ = 1020423133032. Its totient is φ = 1020423133030.

The previous prime is 1020423133019. The next prime is 1020423133039. The reversal of 1020423133031 is 1303313240201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020423133031 is a prime.

It is a super-2 number, since 2×1020423133031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020423132988 and 1020423133006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020423133039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510211566515 + 510211566516.

It is an arithmetic number, because the mean of its divisors is an integer number (510211566516).

Almost surely, 2^{1020423133031} is an apocalyptic number.

1020423133031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020423133031 is an equidigital number, since it uses as much as digits as its factorization.

1020423133031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1020423133031 its reverse (1303313240201), we get a palindrome (2323736373232).

The spelling of 1020423133031 in words is "one trillion, twenty billion, four hundred twenty-three million, one hundred thirty-three thousand, thirty-one".