40311142402 has 4 divisors (see below), whose sum is σ = 60466713606. Its totient is φ = 20155571200.

The previous prime is 40311142351. The next prime is 40311142451. The reversal of 40311142402 is 20424111304.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36855936441 + 3455205961 = 191979^2 + 58781^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077785599 + ... + 10077785602.

Almost surely, 2^40311142402 is an apocalyptic number.

40311142402 is a deficient number, since it is larger than the sum of its proper divisors (20155571204).

40311142402 is a wasteful number, since it uses less digits than its factorization.

40311142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20155571203.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40311142402 its reverse (20424111304), we get a palindrome (60735253706).

The spelling of 40311142402 in words is "forty billion, three hundred eleven million, one hundred forty-two thousand, four hundred two".