10401642731 has 2 divisors, whose sum is σ = 10401642732. Its totient is φ = 10401642730.

The previous prime is 10401642703. The next prime is 10401642821. The reversal of 10401642731 is 13724610401.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (13724610401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10401642731 - 2¹⁰ = 10401641707 is a prime.

It is a super-2 number, since 2×10401642731² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10401642694 and 10401642703.

It is not a weakly prime, because it can be changed into another prime (10401642431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200821365 + 5200821366.

It is an arithmetic number, because the mean of its divisors is an integer number (5200821366).

Almost surely, 2^10401642731 is an apocalyptic number.

10401642731 is a deficient number, since it is larger than the sum of its proper divisors (1).

10401642731 is an equidigital number, since it uses as much as digits as its factorization.

10401642731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 10401642731 in words is "ten billion, four hundred one million, six hundred forty-two thousand, seven hundred thirty-one".