1042112501 has 2 divisors, whose sum is σ = 1042112502. Its totient is φ = 1042112500.

The previous prime is 1042112479. The next prime is 1042112509. The reversal of 1042112501 is 1052112401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 566916100 + 475196401 = 23810^2 + 21799^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042112501 - 2²² = 1037918197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1042112501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042112509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521056250 + 521056251.

It is an arithmetic number, because the mean of its divisors is an integer number (521056251).

Almost surely, 2^1042112501 is an apocalyptic number.

It is an amenable number.

1042112501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042112501 is an equidigital number, since it uses as much as digits as its factorization.

1042112501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1042112501 is about 32281.7673153128. The cubic root of 1042112501 is about 1013.8449335396.

Adding to 1042112501 its reverse (1052112401), we get a palindrome (2094224902).

It can be divided in two parts, 10421 and 12501, that added together give a palindrome (22922).

The spelling of 1042112501 in words is "one billion, forty-two million, one hundred twelve thousand, five hundred one".