1111206152431 has 2 divisors, whose sum is σ = 1111206152432. Its totient is φ = 1111206152430.

The previous prime is 1111206152423. The next prime is 1111206152437. The reversal of 1111206152431 is 1342516021111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111206152431 - 2³ = 1111206152423 is a prime.

It is a super-2 number, since 2×1111206152431² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1111206152431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111206152437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555603076215 + 555603076216.

It is an arithmetic number, because the mean of its divisors is an integer number (555603076216).

Almost surely, 2^{1111206152431} is an apocalyptic number.

1111206152431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111206152431 is an equidigital number, since it uses as much as digits as its factorization.

1111206152431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 1111206152431 in words is "one trillion, one hundred eleven billion, two hundred six million, one hundred fifty-two thousand, four hundred thirty-one".