31555141204002 has 192 divisors, whose sum is σ = 73387482416640. Its totient is φ = 9008289718272.

The previous prime is 31555141203959. The next prime is 31555141204003. The reversal of 31555141204002 is 20040214155513.

It is not an unprimeable number, because it can be changed into a prime (31555141204003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2965982199 + ... + 2965992837.

It is an arithmetic number, because the mean of its divisors is an integer number (382226470920).

Almost surely, 2^{31555141204002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31555141204002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36693741208320).

31555141204002 is an abundant number, since it is smaller than the sum of its proper divisors (41832341212638).

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

31555141204002 is a wasteful number, since it uses less digits than its factorization.

31555141204002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13117 (or 13104 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 31555141204002 its reverse (20040214155513), we get a palindrome (51595355359515).

The spelling of 31555141204002 in words is "thirty-one trillion, five hundred fifty-five billion, one hundred forty-one million, two hundred four thousand, two".