31203202332212 has 6 divisors (see below), whose sum is σ = 54605604081378. Its totient is φ = 15601601166104.

The previous prime is 31203202332163. The next prime is 31203202332283. The reversal of 31203202332212 is 21223320230213.

It can be written as a sum of positive squares in only one way, i.e., 19388487271696 + 11814715060516 = 4403236^2 + 3437254^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3900400291523 + ... + 3900400291530.

It is an arithmetic number, because the mean of its divisors is an integer number (9100934013563).

Almost surely, 2^{31203202332212} is an apocalyptic number.

It is an amenable number.

31203202332212 is a deficient number, since it is larger than the sum of its proper divisors (23402401749166).

31203202332212 is a wasteful number, since it uses less digits than its factorization.

31203202332212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800800583057 (or 7800800583055 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31203202332212 its reverse (21223320230213), we get a palindrome (52426522562425).

The spelling of 31203202332212 in words is "thirty-one trillion, two hundred three billion, two hundred two million, three hundred thirty-two thousand, two hundred twelve".