31203345214055 has 16 divisors (see below), whose sum is σ = 42794468700480. Its totient is φ = 21395924800512.

The previous prime is 31203345214051. The next prime is 31203345214079. The reversal of 31203345214055 is 55041254330213.

It is a cyclic number.

It is not a de Polignac number, because 31203345214055 - 2² = 31203345214051 is a prime.

It is a super-4 number, since 4×31203345214055⁴ (a number of 55 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31203345214051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12479690 + ... + 14769879.

It is an arithmetic number, because the mean of its divisors is an integer number (2674654293780).

Almost surely, 2^{31203345214055} is an apocalyptic number.

31203345214055 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

31203345214055 is a deficient number, since it is larger than the sum of its proper divisors (11591123486425).

31203345214055 is a wasteful number, since it uses less digits than its factorization.

31203345214055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27282298.

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

Adding to 31203345214055 its reverse (55041254330213), we get a palindrome (86244599544268).

The spelling of 31203345214055 in words is "thirty-one trillion, two hundred three billion, three hundred forty-five million, two hundred fourteen thousand, fifty-five".