31212332029 has 2 divisors, whose sum is σ = 31212332030. Its totient is φ = 31212332028.

The previous prime is 31212332003. The next prime is 31212332033. The reversal of 31212332029 is 92023321213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30844843129 + 367488900 = 175627^2 + 19170^2 .

It is an emirp because it is prime and its reverse (92023321213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31212332029 - 2¹³ = 31212323837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31212331988 and 31212332006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31212332429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15606166014 + 15606166015.

It is an arithmetic number, because the mean of its divisors is an integer number (15606166015).

Almost surely, 2^31212332029 is an apocalyptic number.

It is an amenable number.

31212332029 is a deficient number, since it is larger than the sum of its proper divisors (1).

31212332029 is an equidigital number, since it uses as much as digits as its factorization.

31212332029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 31212332029 in words is "thirty-one billion, two hundred twelve million, three hundred thirty-two thousand, twenty-nine".