31105450503434 has 48 divisors (see below), whose sum is σ = 48019610063880. Its totient is φ = 15102784005120.

The previous prime is 31105450503431. The next prime is 31105450503437. The reversal of 31105450503434 is 43430505450113.

It is an interprime number because it is at equal distance from previous prime (31105450503431) and next prime (31105450503437).

It can be written as a sum of positive squares in 4 ways, for example, as 19650292108225 + 11455158395209 = 4432865^2 + 3384547^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31105450503431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12869444594 + ... + 12869447010.

Almost surely, 2^{31105450503434} is an apocalyptic number.

31105450503434 is a deficient number, since it is larger than the sum of its proper divisors (16914159560446).

31105450503434 is a wasteful number, since it uses less digits than its factorization.

31105450503434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255 (or 4992 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 31105450503434 its reverse (43430505450113), we get a palindrome (74535955953547).

The spelling of 31105450503434 in words is "thirty-one trillion, one hundred five billion, four hundred fifty million, five hundred three thousand, four hundred thirty-four".