101402400031 has 4 divisors (see below), whose sum is σ = 103559897952. Its totient is φ = 99244902112.

The previous prime is 101402400017. The next prime is 101402400067. The reversal of 101402400031 is 130004204101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130004204101 = 1951 ⋅66634651.

It is a cyclic number.

It is not a de Polignac number, because 101402400031 - 2⁹ = 101402399519 is a prime.

It is a super-2 number, since 2×101402400031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101402399978 and 101402400014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101402400331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078748890 + ... + 1078748983.

It is an arithmetic number, because the mean of its divisors is an integer number (25889974488).

Almost surely, 2^101402400031 is an apocalyptic number.

101402400031 is a deficient number, since it is larger than the sum of its proper divisors (2157497921).

101402400031 is an equidigital number, since it uses as much as digits as its factorization.

101402400031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157497920.

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

Adding to 101402400031 its reverse (130004204101), we get a palindrome (231406604132).

The spelling of 101402400031 in words is "one hundred one billion, four hundred two million, four hundred thousand, thirty-one".