31055523403 has 2 divisors, whose sum is σ = 31055523404. Its totient is φ = 31055523402.

The previous prime is 31055523397. The next prime is 31055523419. The reversal of 31055523403 is 30432555013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31055523403 - 2³³ = 22465588811 is a prime.

It is not a weakly prime, because it can be changed into another prime (31055523463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15527761701 + 15527761702.

It is an arithmetic number, because the mean of its divisors is an integer number (15527761702).

Almost surely, 2^31055523403 is an apocalyptic number.

31055523403 is a deficient number, since it is larger than the sum of its proper divisors (1).

31055523403 is an equidigital number, since it uses as much as digits as its factorization.

31055523403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 31055523403 in words is "thirty-one billion, fifty-five million, five hundred twenty-three thousand, four hundred three".