1431201073 has 2 divisors, whose sum is σ = 1431201074. Its totient is φ = 1431201072.

The previous prime is 1431201047. The next prime is 1431201119. The reversal of 1431201073 is 3701021341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1366928784 + 64272289 = 36972^2 + 8017^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431201073 - 2¹³ = 1431192881 is a prime.

It is a super-2 number, since 2×1431201073² = 4096673022712702658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1431208073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715600536 + 715600537.

It is an arithmetic number, because the mean of its divisors is an integer number (715600537).

Almost surely, 2^1431201073 is an apocalyptic number.

It is an amenable number.

1431201073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431201073 is an equidigital number, since it uses as much as digits as its factorization.

1431201073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1431201073 is about 37831.2182330942. The cubic root of 1431201073 is about 1126.9385042029.

It can be divided in two parts, 143 and 1201073, that added together give a square (1201216 = 1096²).

The spelling of 1431201073 in words is "one billion, four hundred thirty-one million, two hundred one thousand, seventy-three".