35540401231 has 4 divisors (see below), whose sum is σ = 35540823600. Its totient is φ = 35539978864.

The previous prime is 35540401213. The next prime is 35540401249. The reversal of 35540401231 is 13210404553.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13210404553 = 2459 ⋅5372267.

It is an interprime number because it is at equal distance from previous prime (35540401213) and next prime (35540401249).

It is a cyclic number.

It is not a de Polignac number, because 35540401231 - 2²⁷ = 35406183503 is a prime.

It is a super-2 number, since 2×35540401231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 35540401231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35540401031) 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, 37171 + ... + 269188.

It is an arithmetic number, because the mean of its divisors is an integer number (8885205900).

Almost surely, 2^35540401231 is an apocalyptic number.

35540401231 is a deficient number, since it is larger than the sum of its proper divisors (422369).

35540401231 is a wasteful number, since it uses less digits than its factorization.

35540401231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422368.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 35540401231 its reverse (13210404553), we get a palindrome (48750805784).

The spelling of 35540401231 in words is "thirty-five billion, five hundred forty million, four hundred one thousand, two hundred thirty-one".