11231331029 has 2 divisors, whose sum is σ = 11231331030. Its totient is φ = 11231331028.

The previous prime is 11231330987. The next prime is 11231331049. The reversal of 11231331029 is 92013313211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6383690404 + 4847640625 = 79898^2 + 69625^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231331029 - 2¹² = 11231326933 is a prime.

It is a super-2 number, since 2×11231331029² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11231330989 and 11231331007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231331049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615665514 + 5615665515.

It is an arithmetic number, because the mean of its divisors is an integer number (5615665515).

Almost surely, 2^11231331029 is an apocalyptic number.

It is an amenable number.

11231331029 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231331029 is an equidigital number, since it uses as much as digits as its factorization.

11231331029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 11231331029 in words is "eleven billion, two hundred thirty-one million, three hundred thirty-one thousand, twenty-nine".