31111300001334 has 128 divisors (see below), whose sum is σ = 73430652994560. Its totient is φ = 8601747872256.

The previous prime is 31111300001333. The next prime is 31111300001351. The reversal of 31111300001334 is 43310000311113.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 31111300001334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31111300001333) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 336958944 + ... + 337051260.

It is an arithmetic number, because the mean of its divisors is an integer number (573676976520).

Almost surely, 2^{31111300001334} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31111300001334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36715326497280).

31111300001334 is an abundant number, since it is smaller than the sum of its proper divisors (42319352993226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31111300001334 is a wasteful number, since it uses less digits than its factorization.

31111300001334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93542.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31111300001334 its reverse (43310000311113), we get a palindrome (74421300312447).

The spelling of 31111300001334 in words is "thirty-one trillion, one hundred eleven billion, three hundred million, one thousand, three hundred thirty-four".