31423326629 has 2 divisors, whose sum is σ = 31423326630. Its totient is φ = 31423326628.

The previous prime is 31423326611. The next prime is 31423326647. The reversal of 31423326629 is 92662332413.

It is a balanced prime because it is at equal distance from previous prime (31423326611) and next prime (31423326647).

It can be written as a sum of positive squares in only one way, i.e., 30998884225 + 424442404 = 176065^2 + 20602^2 .

It is a cyclic number.

It is not a de Polignac number, because 31423326629 - 2⁸ = 31423326373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31423326689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711663314 + 15711663315.

It is an arithmetic number, because the mean of its divisors is an integer number (15711663315).

Almost surely, 2^31423326629 is an apocalyptic number.

It is an amenable number.

31423326629 is a deficient number, since it is larger than the sum of its proper divisors (1).

31423326629 is an equidigital number, since it uses as much as digits as its factorization.

31423326629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 41.

The spelling of 31423326629 in words is "thirty-one billion, four hundred twenty-three million, three hundred twenty-six thousand, six hundred twenty-nine".