1142362421 has 2 divisors, whose sum is σ = 1142362422. Its totient is φ = 1142362420.

The previous prime is 1142362411. The next prime is 1142362451. The reversal of 1142362421 is 1242632411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1094683396 + 47679025 = 33086^2 + 6905^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142362421 - 2¹⁰ = 1142361397 is a prime.

It is a super-3 number, since 3×1142362421³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142362411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571181210 + 571181211.

It is an arithmetic number, because the mean of its divisors is an integer number (571181211).

Almost surely, 2^1142362421 is an apocalyptic number.

It is an amenable number.

1142362421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142362421 is an equidigital number, since it uses as much as digits as its factorization.

1142362421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 1142362421 is about 33798.8523621735. The cubic root of 1142362421 is about 1045.3650338327.

Adding to 1142362421 its reverse (1242632411), we get a palindrome (2384994832).

The spelling of 1142362421 in words is "one billion, one hundred forty-two million, three hundred sixty-two thousand, four hundred twenty-one".