13212254131040 has 96 divisors (see below), whose sum is σ = 31307963974560. Its totient is φ = 5268988002304.

The previous prime is 13212254131003. The next prime is 13212254131057. The reversal of 13212254131040 is 4013145221231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13212254130994 and 13212254131012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835734656 + ... + 835750464.

It is an arithmetic number, because the mean of its divisors is an integer number (326124624735).

Almost surely, 2^{13212254131040} is an apocalyptic number.

13212254131040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13212254131040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15653981987280).

13212254131040 is an abundant number, since it is smaller than the sum of its proper divisors (18095709843520).

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

13212254131040 is a wasteful number, since it uses less digits than its factorization.

13212254131040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31224 (or 31216 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 13212254131040 its reverse (4013145221231), we get a palindrome (17225399352271).

The spelling of 13212254131040 in words is "thirteen trillion, two hundred twelve billion, two hundred fifty-four million, one hundred thirty-one thousand, forty".