111204653157431 has 4 divisors (see below), whose sum is σ = 111703328732352. Its totient is φ = 110705977582512.

The previous prime is 111204653157337. The next prime is 111204653157439. The reversal of 111204653157431 is 134751356402111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111204653157431 is a prime.

It is a super-2 number, since 2×111204653157431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111204653157439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249337787126 + ... + 249337787571.

It is an arithmetic number, because the mean of its divisors is an integer number (27925832183088).

Almost surely, 2^{111204653157431} is an apocalyptic number.

111204653157431 is a deficient number, since it is larger than the sum of its proper divisors (498675574921).

111204653157431 is an equidigital number, since it uses as much as digits as its factorization.

111204653157431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498675574920.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 111204653157431 in words is "one hundred eleven trillion, two hundred four billion, six hundred fifty-three million, one hundred fifty-seven thousand, four hundred thirty-one".