1205470031 has 2 divisors, whose sum is σ = 1205470032. Its totient is φ = 1205470030.

The previous prime is 1205470009. The next prime is 1205470033. The reversal of 1205470031 is 1300745021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1205470031 - 2²² = 1201275727 is a prime.

It is a super-2 number, since 2×1205470031² = 2906315991278281922, which contains 22 as substring.

Together with 1205470033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1205469979 and 1205470006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1205470033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602735015 + 602735016.

It is an arithmetic number, because the mean of its divisors is an integer number (602735016).

Almost surely, 2^1205470031 is an apocalyptic number.

1205470031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205470031 is an equidigital number, since it uses as much as digits as its factorization.

1205470031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1205470031 is about 34719.8794784775. The cubic root of 1205470031 is about 1064.2707817870.

The spelling of 1205470031 in words is "one billion, two hundred five million, four hundred seventy thousand, thirty-one".