11331020231129 has 2 divisors, whose sum is σ = 11331020231130. Its totient is φ = 11331020231128.

The previous prime is 11331020231081. The next prime is 11331020231149. The reversal of 11331020231129 is 92113202013311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11005010064400 + 326010166729 = 3317380^2 + 570973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331020231129 is a prime.

It is a super-2 number, since 2×11331020231129² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11331020231149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665510115564 + 5665510115565.

It is an arithmetic number, because the mean of its divisors is an integer number (5665510115565).

Almost surely, 2^{11331020231129} is an apocalyptic number.

It is an amenable number.

11331020231129 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331020231129 is an equidigital number, since it uses as much as digits as its factorization.

11331020231129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 11331020231129 in words is "eleven trillion, three hundred thirty-one billion, twenty million, two hundred thirty-one thousand, one hundred twenty-nine".