1231100701 has 2 divisors, whose sum is σ = 1231100702. Its totient is φ = 1231100700.

The previous prime is 1231100699. The next prime is 1231100743. The reversal of 1231100701 is 1070011321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1228572601 + 2528100 = 35051^2 + 1590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231100701 - 2¹ = 1231100699 is a prime.

Together with 1231100699, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231100771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615550350 + 615550351.

It is an arithmetic number, because the mean of its divisors is an integer number (615550351).

Almost surely, 2^1231100701 is an apocalyptic number.

It is an amenable number.

1231100701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231100701 is an equidigital number, since it uses as much as digits as its factorization.

1231100701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 1231100701 is about 35087.0446318866. The cubic root of 1231100701 is about 1071.7607777840.

The spelling of 1231100701 in words is "one billion, two hundred thirty-one million, one hundred thousand, seven hundred one".