1142400031 has 2 divisors, whose sum is σ = 1142400032. Its totient is φ = 1142400030.

The previous prime is 1142399971. The next prime is 1142400037. The reversal of 1142400031 is 1300042411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1142400031 - 2¹⁹ = 1141875743 is a prime.

It is a super-2 number, since 2×1142400031² = 2610155661657601922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1142399978 and 1142400014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142400037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571200015 + 571200016.

It is an arithmetic number, because the mean of its divisors is an integer number (571200016).

Almost surely, 2^1142400031 is an apocalyptic number.

1142400031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142400031 is an equidigital number, since it uses as much as digits as its factorization.

1142400031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1142400031 is about 33799.4087374321. The cubic root of 1142400031 is about 1045.3765058918.

Adding to 1142400031 its reverse (1300042411), we get a palindrome (2442442442).

The spelling of 1142400031 in words is "one billion, one hundred forty-two million, four hundred thousand, thirty-one".